Choose Outbreak
Choose Outbreak if you want a RPG game with Shared/Split Screen and Shared/Split Screen Co-op. Outbreak launched in 2017.
Outbreak vs Undead Chaos
Outbreak and Undead Chaos both land in Action, Indie, Adventure on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie, Adventure on Steam. Both support cooperative play. Outbreak is Deck Playable on Steam Deck; Undead Chaos has no Deck rating yet. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Undead Chaos
Choose Undead Chaos if you want an Early Access game with Steam Leaderboards, Camera Comfort, and Stereo Sound.
Both Outbreak and Undead Chaos sit in Action, Indie, and Adventure on Steam and both list Multi-player, Online Co-op, and Co-op, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Outbreak |  Undead Chaos | |
|---|---|---|
| Released | 2017 | — |
| Genres | Action, Indie, Adventure, RPG | Action, Indie, Adventure, Early Access |
| Platforms | Windows, Linux | Windows, Linux |
| Steam Deck | Deck Playable | Unrated |
| Price | 0.99 USD | Price unknown |
| Steam reviews | 64.9% positive (77 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Dead Drop Studios LLC | OA Game Devs |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Both support cooperative play.
- Outbreak is Deck Playable on Steam Deck; Undead Chaos has no Deck rating yet.
Outbreak vs Undead Chaos — FAQ
- Are Outbreak and Undead Chaos similar?
- They overlap on Action, Indie, Adventure on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Do both Outbreak and Undead Chaos have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Outbreak ships Online Co-op, Shared/Split Screen Co-op; Undead Chaos ships Online Co-op, Co-op.
- Does Outbreak run on Steam Deck?
- Yes — Outbreak is rated Deck Playable by Valve. Undead Chaos doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.