Choose FriendOS
Choose FriendOS if you want a Massively Multiplayer game with Camera Comfort. FriendOS launched in 2026.
FriendOS vs Horde Slayer
FriendOS and Horde Slayer 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. Horde Slayer (2025) is 1 year older than FriendOS (2026). Both support cooperative play. 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 Horde Slayer
Choose Horde Slayer if you want the Steam Leaderboards, Playable without Timed Input, and Save Anytime side of the pairing. Horde Slayer launched in 2025.
Both FriendOS and Horde Slayer sit in Action, Indie, and Adventure on Steam and both list Multi-player, Online Co-op, and Custom Volume Controls, 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
 FriendOS |  Horde Slayer | |
|---|---|---|
| Released | 2026 | 2025 |
| Genres | Action, Indie, Adventure, Massively Multiplayer, RPG, Early Access | Action, Indie, Adventure, RPG, Early Access |
| Platforms | Windows, Linux | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | 7.99 USD |
| Steam reviews | — | 2 reviews |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Dog in the Machine | Teodore |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Horde Slayer (2025) is 1 year older than FriendOS (2026).
- Both support cooperative play.
FriendOS vs Horde Slayer — FAQ
- Should I play FriendOS or Horde Slayer first?
- If you want chronology, Horde Slayer (2025) came out before FriendOS (2026). 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 FriendOS and Horde Slayer 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 FriendOS and Horde Slayer have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: FriendOS ships Online Co-op, Co-op; Horde Slayer ships Online Co-op, Co-op.