Co-Optimus Your prime source for Co-Op gaming! Fri, 06 Nov 2026 11:10:33 -0500 https://www.co-optimus.com en-us https://www.co-optimus.com/images/cooplogo.pngcooplogo.pnghttps://www.co-optimus.com POPUCOM Comes to PlayStation 5 on November 17 Paul Acevedo

Last year, Hypergrayph and Gryphline's POPUCOM made quite a splash on Switch and Steam. The game's solid co-op features and clever mix of color-matching puzzles, 3D platforming, and bright, appealing colors has earned it a Very Positive rating on Steam, after all. Well, Sony fans will soon get to Pop their Coms in co-op at long last. POPUCOM is heading to PlayStation 5 on November 17!

Features:

  • Fun-filled Co-op Gameplay: Work together with your friends to take on a variety of challenges. Effective cooperation and strong teamwork are the only ways forward. Whether it's facing powerful enemies or tackling complex puzzles, you'll need to work together to triumph!
  • A Colorful Adventure: Color plays a crucial role in this fantastical world. It is key to everything from puzzle solving to combat. You'll need to switch colors to activate mechanisms and solve puzzles, and shoot Pomu gel in different colors to change the surroundings and impact enemies. Master the techniques of color switching and match-3 shooting to overcome puzzles and defeat enemies!

POPUCOM

  • Use Items to Work Miracles: During the journey, you will acquire items known as super artifacts. Examples of these wondrous artifacts include Rollo the Bomb, Captain Kitty, Barrier Bot, and Power Kid. Each of them grants you a unique ability that helps remove obstacles and solve puzzles in your adventure.
  • Let Your Style Shine: The adventure isn't just about combat; it's also about showcasing your style! Pick from a selection of gear and cosmetics in the Closet and combine them to create your unique looks. Then you can set off on the journey in your personalized style!
  • Arcade Minigames: In addition to the exciting battles and engaging puzzles, the game includes a number of enjoyable mini-games. Head to the in-game arcade room for some lighthearted arcade fun during breaks from the main stages.

Everything about POPUCOM looks delightful, so I'm sure Sony gamers are going to love it. The game supports 2-player split-screen co-op and up to 4-player online co-op. Maybe we'll give the Steam version a try sometime! Those coms aren't going to pop themselves, after all.

POPUCOM costs $19.99 on Switch and Steam. It will arrive on PlayStation 5 on Tuesday, November 17, with a ten percent launch discount.


Read More]]> https://www.co-optimus.com/article/17884/popucom-comes-to-playstation-5-on-november-17.html https://www.co-optimus.com/article/17884/popucom-comes-to-playstation-5-on-november-17.html Fri, 06 Nov 2026 09:00:15 -0500 Co-Optimus K-Pop Rising Has Risen on PlayStation 5, Switch, and Steam Paul Acevedo

K-pop, the musical genre originated in South Korea, has increased in popularity in recent years. Not only is that KPop Demon Hunters movie a big enough hit to receive a Criterion Collection Blu-ray, but now there are even video games getting in on the fun. French publisher Microids has shown an affinity for games with Asian themes (and failing to answer interview questions), so it's not too surprising that they have just released K-Pop Rising - Dream to Shine on everything but Xbox (aww, man!). What's pleasantly surprising is that this game features 3-player local co-op. Daebak!

Features:

  • The international phenomenon in your hands: Draw inspiration from your idols and experience the rise of today's biggest K-Pop groups. Become the face of this culture that fascinates the entire world.
  • An adventure that reflects who you are (Full customization): Express your uniqueness! Create and customize your character from head to toe to match your style and the vibe of your performances. Trendy outfits, iconic makeup... everything is possible to establish your style in the spotlight.
  • Your group, your rules: You call the shots. Create a group in your own image, recruit its members, and turn your very first fans into an international community of millions of followers.

K-Pop Rising screenshot

  • Stay in the rhythm! Talent is nurtured. Perfect your singing, master highly precise choreographies, and sharpen your sense of timing through captivating rhythm gameplay phases to become an accomplished star.
  • From your bedroom to conquering stadiums: Start at the bottom of the ladder in the anonymity of your bedroom, climb the ranks through your passion and perseverance, and transform yourself into the international icon of your dreams.
  • Shine solo, triumph as a trio! Because music is all about sharing, experience this adventure alone or with two friends. Form the group of your dreams in co-op mode and unite your talents to lead your Band straight to the top of the global charts!

Besides the egregious lack of an Xbox version, K-Pop Rising has another disappointing factor: no Remote Play Together support on Steam. Come on, developers, that's such an easy way to add online play to Steam games! That downer aside, this looks like a fun game for girls and K-pop fans alike. A J-pop game would be cool too, come to think of it!

K-Pop Rising - Rise to Shine! costs $34.99 on PlayStation 5 and Switch, and $29.99 on Steam.


Read More]]> https://www.co-optimus.com/article/17883/k-pop-rising-has-risen-on-playstation-5-switch-and-steam.html https://www.co-optimus.com/article/17883/k-pop-rising-has-risen-on-playstation-5-switch-and-steam.html Fri, 06 Nov 2026 07:00:01 -0500 Co-Optimus Deep Rock Galactic: Rogue Core Gets a Major Update on Steam Paul Acevedo

The original Deep Rock Galactic is a challenging multiplayer-focused first-person shooter, and a popular one at that. Following after a bullet hell spinoff, the next game in the Deep Rock series is Deep Rock Galactic: Rogue Core, a FPS roguelike that hews closer to the original game. Rogue Core is currently in the early access period on Steam, where it has just received a major update.

Update 3 Details:

  • Who’s Gatekeeping Now? – Balgorath joins Rogue Core’s roster of bosses, bringing a new challenge for squads delving deeper into Hoxxes IV. Boss Risk Vectors can also shake up the final fight, letting players choose modifiers that alter boss behaviour or introduce new mechanics.
  • More Ways to Build a Run – Enemies will now drop Expenite as standard, rewarding Reclaimers throughout combat as they work towards their next upgrade. Flux Quartz can now be spent at the new Refractor Terminal to reroll upgrades and Artifacts or boost health. The new Prowess Bio-Booster deck is available to all classes and focuses on grenade builds, while Bio-Booster decks can now be swapped earlier in a run.
  • New Tools of the Trade – The Ventura brings a hard-hitting pump-action shotgun to the armoury, while the XQ-2 Quantum Warpfield gives squads a new way to move around the caves by placing two connected teleportation points. The Flare Gun has also moved out of the starting traversal-tool pool and into the opening room, where any Reclaimer willing to break the glass can claim it.

Deep Rock Galactic Rogue Corp

  • Expect the Unexpected – Runs gain greater variety through new stage Alterations, additional elevator objectives, and Priority Missions. Reclaimers may need to recover missing Cogs or clear invasive Core Growths before extraction, while Priority Missions offer bonus Reclaimer Points for taking on highlighted objectives across the map.
  • No Run Left Behind – A new crash recovery system gives remaining squad members the option to continue if the host disconnects or crashes, restarting the current stage rather than losing the run altogether.
  • Something to Show For It – A new Trophy Screen gives Reclaimers another way to track their progress, while the Cosmetic Sheet has been redesigned to make unlocks clearer and easier to navigate. Any Scrip already spent through the previous Cosmetic Sheet will be refunded.

Check out the Update 3 Patch Notes for a full list of changes.

Steam reviews indicate that up until now, Rogue Core's reception has been mixed. This update brings a lot of improvements to the table, however, so it will be interesting to see if the winds change going forward. The winds are changing all over the place this week, after all! I'm certainly eager to give this one a try and see how well it captures that original Deep Rock Galactic magic.

Deep Rock Galactic: Rogue Core costs $29.99 on Steam. It supports 4-player online co-op, and currently has "Playable" status on Steam Deck.


Read More]]> https://www.co-optimus.com/article/17882/deep-rock-galactic-rogue-core-gets-a-major-update-on-steam.html https://www.co-optimus.com/article/17882/deep-rock-galactic-rogue-core-gets-a-major-update-on-steam.html Thu, 05 Nov 2026 07:00:16 -0500 Co-Optimus Co-Op Monthly Round-Up for October 2026 Christoph Licht

We are not totally against the use of AI here at Co-Optimus Headquarters. Quite the contrary: Claude helped us quite a bit to improve the rather old code base of the site after that whole PHP-fiasco a couple of weeks ago. Talking about games, however, we do draw the line at generative AI being used for asset creation, and not just because it puts talented people out of jobs. It also significantly increases the amount of worthless slop produced and put on store shelves. Asset flips were already a nightmare, especially in the "Survival Horror" genre, but after what we've witnessed during Steam Next Fest, we almost wish to go back to these simpler times.

Luckily, our Database Master doesn't just blindly add everything that has a co-op tag to its name. He exercises a bit of quality control and uses his common sense before adding something to the database. While this isn't an AI-free-guarantee, we do try to keep the bottom of the barrel out, no matter how it was produced.

With that said: Take a look below at the noteworthy titles in our database that were released in October. 

Game Releases

Games Added


Read More]]> https://www.co-optimus.com/article/17879/co-op-monthly-round-up-for-october-2026.html https://www.co-optimus.com/article/17879/co-op-monthly-round-up-for-october-2026.html Sun, 01 Nov 2026 08:00:00 -0500 Co-Optimus Join Us for Our 15th Year Supporting Extra Life Eric Murphy

Extra Life Game Day is right around the corner! On November 7th, the Co-Optimus Team will join thousands of gamers across the US and Canada to celebrate our fundraising progress and make one final, united push to raise even more money for kids in need. Whether you're a longtime supporter or just discovering Extra Life, we'd love to have you join us! We welcome new team members, donations of any amount, and, of course, your company in Twitch chat while we spend the day playing co-op games. It's a great excuse to hang out, play some games, and make a real difference in the lives of children and their families.

Perhaps you're new here and wondering what Extra Life is all about. Well, let me explain! Extra Life is a charity founded by gamers, for the benefit of Children's Miracle Network (CMN) Hospitals throughout the US and Canada. When participants sign up, they choose a CMN hospital to support, whether it's their local children's hospital or one that holds a special place in their heart. Donations raised through Extra Life go directly to the hospital selected by each fundraiser. These funds help hospitals address their most pressing needs, from purchasing life-saving medical equipment and supporting research to providing resources that make hospital stays a little easier for young patients and their families. That can even mean helping families with nearby lodging so they can stay close to their children during treatment.

Why does this matter? Because every child deserves access to the care they need, regardless of their family's financial circumstances. Children's hospitals do so much more than treat illnesses and injuries. They care for children facing serious and sometimes life-threatening conditions, support families through incredibly difficult moments, and work to give young patients the best possible chance at a healthy future. Donations help these hospitals provide specialized care, invest in better treatments, and meet needs that might otherwise go unmet. Even a small contribution can help make a difference, and when thousands of gamers come together, those individual donations can add up to something truly meaningful.

Supporting Extra Life is also a way for our gaming community to turn something we love into something that helps others. Gaming brings people together, builds friendships, and gives us a shared passion—and Extra Life lets us use that passion for a good cause. You don't have to be a hardcore gamer or make a huge donation to participate. You can join our team, spread the word, watch the stream, cheer us on in chat, or donate whatever you can comfortably afford. Every bit of support helps us bring a little more hope to kids and families who need it.

While our fundraising numbers have been down over the past few years, I'm still incredibly proud to say that this is our 15th year participating in Extra Life! Since 2012, the Co-Optimus Team has raised an amazing $26,212.81. That's not bad for a small team! Every dollar represents someone in our community taking the time to support a cause that matters, and I'm grateful to everyone who has donated, participated, or helped spread the word over the years.

We're committed to keeping this tradition alive for as long as we can, and we hope you'll help us continue making a difference. If you're able, please consider donating through the Co-Optimus Extra Life team page. No donation is too small, and every contribution helps support the children and families served by our chosen CMN hospital.

And if you can't donate, that's absolutely fine—we'd still love to see you! Stop by our Twitch stream on November 7th to hang out, chat, and watch us play co-op games for most of the day. Come say hello, cheer us on, and enjoy some gaming with the community.

Thank you to everyone who has supported us over the years. Here's to 15 years of gaming for a great cause, and hopefully many more to come. Let's make this year's Game Day a good one!
 


Read More]]> https://www.co-optimus.com/article/17880/join-us-for-our-15th-year-supporting-extra-life.html https://www.co-optimus.com/article/17880/join-us-for-our-15th-year-supporting-extra-life.html Fri, 30 Oct 2026 20:34:50 -0400 Co-Optimus Co-Op Monthly Round-Up for September 2026 Christoph Licht

Own a Nintendo Switch 2? Then the last few months were very good in terms of new releases. More and more titles are getting a dedicated release for the console, while older ones are being ported over. This month alone, we've seen 14 co-op titles hitting store shelves - almost half of the amount of PC releases (33)! In total our release calender lists 57 entries across all platforms. So, as always, there's so much to play and not enough time to do it - and autumn has only just begun.

Top Stories Past 30 Days

Game Releases

Games Added



Read More]]> https://www.co-optimus.com/article/17878/co-op-monthly-round-up-for-september-2026.html https://www.co-optimus.com/article/17878/co-op-monthly-round-up-for-september-2026.html Thu, 01 Oct 2026 08:00:00 -0400 Co-Optimus Aliens: Fireteam Elite 2 Updates and Switch 2 Version Are in the Works Paul Acevedo

When Aliens: Fireteam Elite 2 from Cold Iron Studios and Daybreak Games arrived at the end of August, it was absent from one current-gen platform: Switch 2. Nintendo players weren't having any xenomorph-blasting fun, and that's sad. Well, it turns out that those players will get their chance to shine against the aliens, but not for a little while. Fireteam Elite 2 is coming to Switch 2 in "early 2027." Better than never, right?

Quick features:

  • 4-player Co-op
  • Classic and New Xenomorphs
  • New Specialist Class
  • Horde Mode

We've spent some time with the Xbox version of Fireteam Elite 2, and it has been a blast so far. The game takes place on a research colony from which a distress signal has been sent. When the Colonial marines arrive, they find that the scientist who called for help is missing, colonists have been experimented on and slaughtered, and all manner of alien monsters are running amuck. On top of that, more than one faction wants the base's research, so the marines must contend with military combat synths (androids) as well.

Aliens: Fireteam Elite 2 Xbox Series X screenshot

Xbox Series X screenshots

Missions take about thirty minutes each and consist of objectives like searching rooms, accessing files, wiping out alien infestations, defending locations, and evacuating. Things get hectic, and it can be tough at times; my team has failed more than one mission on our first attempt. Thankfully, players still gain experience for the class and weapons they use when a mission ends in failure. Weapons are upgradeable with a variety of parts purchased from the in-game vendor, and each class has a variety of unlockable perks that can be equipped as well. Unlocking those parts and perks seems a little grindy, but I love the dark sci-fi atmosphere and tight cooperative play so far. Stay tuned for our full co-op review!

Oh, and while the Switch 2 version cooks, Cold Iron Studios are busy working on performance upgrades and fixes for the current versions of the game. That's a relief, because the Steam version has suffered review bombing for just those issues. See this post for a hint of improvements to come.

Aliens: Fireteam Elite 2 costs $49.99 on Xbox Series, PlayStation 5, Steam, and Epic. That Switch 2 version that everybody keeps going on about will arrive in early 2027, so don't lose hope, Switch gamers!


Read More]]> https://www.co-optimus.com/article/17877/aliens-fireteam-elite-2-updates-and-switch-2-version-are-in-the-works.html https://www.co-optimus.com/article/17877/aliens-fireteam-elite-2-updates-and-switch-2-version-are-in-the-works.html Wed, 16 Sep 2026 09:00:49 -0400 Co-Optimus RuneScape: Dragonwilds Fully Launches on Consoles, Game Pass, and PC Paul Acevedo

Back in the days of yore, Runescape was a popular fantasy MMO. Actually, it's still pretty popular on Steam in the forms of Oldschool Runescape and regular Runescape. Well, now there's a new flavor in town: Runescape Dragonwilds has just launched on current-gen consoles and PC after a period of early access. This one's a cooperative open-world survival RPG instead of an MMO. With 4-player online co-op, cross-play, and lots of stuff to do, Dragonwilds looks like a pretty big deal for both returning fans of the 'scape.

Features:

  • RuneScape at its core! Embark on quests, level skills while exploring a beautiful, hand-crafted world. This all-new adventure blends high-fantasy and iconic RuneScape lore on an undiscovered continent. Battle legendary RuneScape creatures like Zogres, challenge Black Knights and the entirely new and fearsome Garou, all set to a sweeping soundtrack of reorchestrated RuneScape classics and hours of brand-new music.

  • Grind Skills, Slay Dragons: Locate them, throw down the gauntlet, and carve a path to the Dragon Queen herself. Follow the trail of destruction and uncover the mysteries of the continent to learn not just how to confront the dragons, but how to overcome them. 

Runescape: Dragonwilds screenshot

  • Survival Through Sorcery: Summon a spectral axe to fell trees in an instant! Blink away from danger in a cloud of magic. Turn bones into... peaches? The Anima-rich landscape of Ashenfall offers a power unlike any other. Conjure a tornado of fish from a lake! Explode ore veins with a snap of your fingers! Journey through the vibrant regions of Ashenfall, discover why wild magic spills from the fractured lands and harness that power to survive!

  • Community Driven, Player Centric: Like all RuneScape games, community is at the heart of RuneScape: Dragonwilds. Whether players are adventuring with friends or going it alone, every opinion matters, and it's up to the community to help shape the future of our game.

RuneScape: Dragonwilds costs $29.99 on Xbox Series, PlayStation 5, Switch 2, Steam, and Epic. The Deluxe Edition sells for $39.99 and includes a bundle of cosmetic and decorative items in addition to the game.

Physical standard and deluxe editions for Xbox and PlayStation are available for preorder at Amazon and will be released on November 5.


Read More]]> https://www.co-optimus.com/article/17876/runescape-dragonwilds-fully-launches-on-consoles-game-pass-and-pc.html https://www.co-optimus.com/article/17876/runescape-dragonwilds-fully-launches-on-consoles-game-pass-and-pc.html Tue, 15 Sep 2026 10:01:39 -0400 Co-Optimus The Last Gas Station Gets 2-Player Online Co-op Paul Acevedo

What would a world without gas stations even look like? Dead cars as far as the eye can see, dogs and cats living together... It would be complete anarchy! Well, The Last Gas Station from Alawar dares to imagine just such a brave new world. That world just got a little less lonely because the game has been updated with 2-player online co-op. The station is open right now on Steam.

Official description:

You are the new owner of an old gas station and a cozy little store next to it. The previous owner disappeared under mysterious circumstances, and now it is your turn to maintain order here.

Grow your business: clear out the trash, organize the space, set up trade, order goods, set prices, work the cash register and monitor the fuel levels. Turn the old ruin into a beacon for travelers stuck in time!

But no matter what happens, do not go out at night unless you want to share the fate of the previous owner.

The Last Gas Station Co-op Mode

Co-op Mode details:

Play together online with a friend! Invite your Steam friend to your save file and pick up where you left off. Serve the customers and follow the story together, all while picking different outfits on the clothing rack in the bedroom. 

Several starter skins are available right away, with more unlocking as you progress through the game. 

Please note: both players must own a copy of the game on Steam. 

Shame about the lack of Remote Play Together support, but this still looks like a pretty interesting game. Surely it's more fun than actually working at a gas station. "The worst part is: I wasn't even supposed to be here today!"

The Last Gas Station costs $13.99 on Steam. To celebrate the co-op update, it's on sale for half off until Tuesday, September 29. Buy it and get that gas pumping, clerks!


Read More]]> https://www.co-optimus.com/article/17875/the-last-gas-station-gets-2-player-online-co-op.html https://www.co-optimus.com/article/17875/the-last-gas-station-gets-2-player-online-co-op.html Tue, 15 Sep 2026 08:00:25 -0400 Co-Optimus Team Up Together in Tactical Roguelike 'Forsworn,' Out Now on Steam Paul Acevedo

Forsworn and seven years ago, our forefathers brought forth upon Steam a new roguelike, conceived with turn-based combat and cooperative multiplayer... Ahem! That's Forsworn, a new 3-player game from Sacramento-based indie developer Resummon Studios. It's out now on Steam, I swear it! I swear it, I swear it, I swear it.

Official description:

Build powerful party synergies and fight through unforgiving battles as you explore and save a realm torn apart by divine war. When one run ends in death, resurrection begins the next. 

Embrace scaling difficulties that add new layers of challenges, from random modifiers added to enemies to map-wide trials that affect the entire encounter. Each run and encounter will be fresh as you try out different party builds.

Forsworn screenshot

Features:

  • Fight Solo or Together: Lead your champions solo or team up with up to two friends online, with all players playing simultaneously for fast and tactical battles.
  • Build Your Party: Choose heroes, unlock abilities, equip items, and shape your team across each run as you aim to create game-breaking combos.
  • Make Every Run Count: Learn from defeat, collect Soul Shards, and return stronger than ever before as you create endless hero builds.
  • Unleash Ultimate Abilities: Charge powerful hero abilities through attacking, casting spells, or defending, and use them to turn the battle in your favor.
  • Choose Your Challenge: Enter the world of Forsworn in two primary game modes (Roguelike Adventure and Endless Arena) across five difficulties that add new layers of challenges, from random modifiers added to enemies to map-wide trials that affect the entire counter. Each run and encounter will be fresh as you and your friends try out different party builds.

This seems like a well-crafted co-op title for strategy fans. Three player support is better than two!

Forsworn costs $15.99 on Steam. It's on sale for twenty percent off until Thursday, September 24. Hurry up and get it, and no swearing!


Read More]]> https://www.co-optimus.com/article/17874/team-up-together-in-tactical-roguelike-forsworn-out-now-on-steam.html https://www.co-optimus.com/article/17874/team-up-together-in-tactical-roguelike-forsworn-out-now-on-steam.html Tue, 15 Sep 2026 07:02:10 -0400 Co-Optimus Parisian Bistro Simulator Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/parisian-bistro-simulator https://www.co-optimus.com/related-news/parisian-bistro-simulator Thu, 05 Nov 2026 09:48:38 -0500 Co-Optimus Metal Thunder Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/metal-thunder https://www.co-optimus.com/related-news/metal-thunder Wed, 04 Nov 2026 04:50:23 -0500 Co-Optimus Project Afterfall Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/project-afterfall https://www.co-optimus.com/related-news/project-afterfall Wed, 04 Nov 2026 04:38:29 -0500 Co-Optimus Finals Week Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/finals-week https://www.co-optimus.com/related-news/finals-week Fri, 30 Oct 2026 11:31:09 -0400 Co-Optimus S.O.N.A.R. - Submarine Operators Not Actually Ready Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/s-o-n-a-r-submarine-operators-not-actually-ready https://www.co-optimus.com/related-news/s-o-n-a-r-submarine-operators-not-actually-ready Fri, 30 Oct 2026 11:27:22 -0400 Co-Optimus Deadly Days: Roadtrip Co-Optimus PC and PlayStation 5 to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/deadly-days-roadtrip https://www.co-optimus.com/related-news/deadly-days-roadtrip Fri, 30 Oct 2026 11:22:52 -0400 Co-Optimus Island Sort Co-Optimus PC to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/island-sort https://www.co-optimus.com/related-news/island-sort Fri, 30 Oct 2026 11:12:15 -0400 Co-Optimus Island Market Simulator Co-Optimus PC and PlayStation 5 to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/island-market-simulator https://www.co-optimus.com/related-news/island-market-simulator Fri, 30 Oct 2026 11:09:59 -0400 Co-Optimus Ninja Baseball League-Man: Bases Loaded Co-Optimus PC, Switch 2, Xbox Series and PlayStation 5 to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/ninja-baseball-league-man-bases-loaded https://www.co-optimus.com/related-news/ninja-baseball-league-man-bases-loaded Fri, 30 Oct 2026 10:53:41 -0400 Co-Optimus The Raiden Project Co-Optimus Classic, Switch 2 and PlayStation 5 to our database of Co-Op games!

]]> https://www.co-optimus.com/related-news/the-raiden-project https://www.co-optimus.com/related-news/the-raiden-project Fri, 30 Oct 2026 10:36:02 -0400 Co-Optimus