Choose Contagion
Choose Contagion if you want the Multi-player, Steam Leaderboards, and Online PvP side of the pairing. On Steam, it's currently about 20% cheaper on the Steam Store. 5,535 Steam reviews back the pick.
Contagion vs Unreal Zombies
Contagion and Unreal Zombies 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. Contagion (2013) is 12 years older than Unreal Zombies (2025). Contagion is currently ~20% cheaper on Steam than Unreal Zombies (3.99 USD vs. 4.99 USD). 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 Unreal Zombies
Choose Unreal Zombies if you want a Strategy and Early Access experience. On Steam, it's the newer release (2025) and ships with the modern feature baseline. Unreal Zombies launched in 2025.
Both Contagion and Unreal Zombies sit in Action, Indie, and Adventure on Steam and both list Custom Volume Controls, Stereo Sound, and Playable without Timed Input, 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
 Contagion |  Unreal Zombies | |
|---|---|---|
| Released | 2013 | 2025 |
| Genres | Action, Indie, Adventure | Action, Strategy, Indie, Adventure, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 3.99 USD | 4.99 USD |
| Steam reviews | 73.2% positive (5,535 reviews) | 3 reviews |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | Monochrome, Inc | CatgirlLydia |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Contagion (2013) is 12 years older than Unreal Zombies (2025).
- Contagion is currently ~20% cheaper on Steam than Unreal Zombies (3.99 USD vs. 4.99 USD).
- Contagion has co-op; Unreal Zombies does not.
- Contagion is Deck Verified on Steam Deck; Unreal Zombies has no Deck rating yet.
Contagion vs Unreal Zombies — FAQ
- Should I play Contagion or Unreal Zombies first?
- If you want chronology, Contagion (2013) came out before Unreal Zombies (2025). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Contagion and Unreal Zombies 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.
- Does Unreal Zombies have multiplayer like Contagion?
- No. Contagion supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Unreal Zombies is listed as single-player only.
- Does Contagion run on Steam Deck?
- Yes — Contagion is rated Deck Verified by Valve. Unreal Zombies doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.