Several places help you find a co-op game, and they are good at different things. One has records going back to older consoles, one is built around your Steam library, one is the store itself, and one is us. We checked each on 2 October 2026 and describe what we saw. Sites change, so if something here is out of date, tell us and we will correct it.
Co-Optimus
Co-Optimus was founded in 2008 and is the oldest of the co-op sites here. Its database covers dozens of platforms, from current consoles back to systems most people have packed away.
Its game search is the most detailed of the four for co-op modes. You can search by system and by player count (at least, exactly or at most), and filter for online co-op, couch co-op, split screen, LAN, “combo” co-op (some players on one screen, others online), drop-in/drop-out and free to play. Results show online and couch player counts in separate columns.
It is also a news and review site. Reviews carry a separate co-op score next to the overall score, and there is a monthly co-op round-up.
- Good for: detailed co-op mode information, older and less common platforms, co-op news and reviews.
- Limits: the search form we saw has no crossplay filter and no price filter beyond free to play, so groups split across platforms or watching a budget have to check those per game.
Co-Op Now
Co-Op Now (co-op.now) is built around the group rather than the game. Alongside a game database, it offers Steam library sync to find games a group already owns, shared shortlists and voting, a looking-for-group feature and game-night planning.
Its data sources page is clear about where information comes from. Game details start from Steam’s store data. Which co-op modes a game has and how many players fit in one group are kept in the site’s own reviewed record, with a confidence level on group sizes. Prices and historical lows come from IsThereAnyDeal. Crossplay comes partly from community reports, which keep a caveat until confirmed. The browse page filters by player count, how you play together and session length, and marks crossplay games.
- Good for: PC groups who want to see what everyone already owns, find other players, or plan a session.
- Limits: library sync reads Steam libraries and only works with a public Steam profile, as the site itself explains.
Steam’s own co-op filters
Steam has a co-operative category page and, more usefully, search filters. Under “Narrow by number of players” you can choose online co-op, LAN co-op and shared/split screen co-op. Under features you can filter for Remote Play Together, cross-platform multiplayer and Family Sharing. There is a price filter, and tags such as “Online Co-Op” and “Local Co-Op”.
- Good for: PC players, because it is where you buy, prices are current, and the Remote Play Together filter finds local games you can share online with one copy.
- Limits: the filters say how you can play, not how many can, so groups of a fixed size check each game by hand. It also only lists games sold on Steam.
CoopGamesDB
CoopGamesDB is this site. It is young and curated, and its catalogue is small.
Games arrive in two ways. Developers submit their own games, and a person reviews each one before it goes live. Our editors also add co-op games from their store pages and public sources, and each page says where its facts come from.
You can filter by player count, way to play (online, same couch, split screen, LAN), platform, price, genre, mood, session length and drop-in play. Game pages answer the questions groups ask: how many players fit online and on one screen, which platforms it’s on, and what the game costs for your whole group. Crossplay isn’t shown yet, until it is confirmed game by game. Each game page says where its facts come from: its developer or our editors. The home page runs a feed of new games, updates, demos, playtests and sales.
- Good for: groups with a fixed size, mixed platforms or a budget, and players looking for smaller games from developers who keep their own pages up to date.
- Limits: the catalogue is far smaller than the others, and there is no library sync, looking-for-group or review section yet.
Side by side
| Co-Optimus | Co-Op Now | Steam | CoopGamesDB | |
|---|---|---|---|---|
| Platforms | Dozens, current and older | PC, PlayStation, Xbox, Switch | Games sold on Steam | PC, PS5, Xbox, Switch, Mac, Linux, mobile |
| Filter by player count | Yes (at least, exactly, at most) | Yes | No | Yes (at least) |
| Ways to play | Online, couch, split screen, LAN, combo, drop-in | Online, couch, split screen, LAN | Online, LAN, shared/split screen | Online, same couch, split screen, LAN, drop-in |
| Crossplay | No filter seen | Marked; community reports with caveats | Cross-platform multiplayer filter | Filter; pages list which platforms play together |
| Price | Free-to-play filter | Prices and historical lows | Store prices and price filter | Price filters, total for your group, sales |
| Group tools | None seen | Library sync, shortlists, voting, looking for group | Remote Play Together, Family Sharing | Random picker, upvotes |
| How games get in | No public submit form seen | Steam data plus its own review | Developers publish on Steam | Developers submit, people review; editors add some |
Which to use when
- You know the platform and want every option with detailed co-op modes: Co-Optimus.
- You are a PC group and want to start from what you already own: Co-Op Now, or Steam’s filters if you just want to browse the store.
- You have a fixed group size, mixed platforms or a budget per group: CoopGamesDB’s filters and game pages are built for that question.
These sites work well together. Find a candidate in one, check its co-op details in another, and buy where it is cheapest. Here are the newest games on CoopGamesDB:
