Choose Killing Floor 2
Choose Killing Floor 2 if you want the Online PvP, PvP, and Valve Anti-Cheat enabled side of the pairing. 41,923 Steam reviews back the pick.
Killing Floor 2 vs SAFE INSIDE
Killing Floor 2 and SAFE INSIDE both land in Action 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 are Action games on Steam. Both support cooperative play. Killing Floor 2 is Deck Playable on Steam Deck; SAFE INSIDE 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 SAFE INSIDE
Choose SAFE INSIDE if it matches what drew you to this matchup.
Both Killing Floor 2 and SAFE INSIDE sit in Action 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
 Killing Floor 2 |  SAFE INSIDE | |
|---|---|---|
| Released | 2016 | — |
| Genres | Action | Action |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 29.99 USD | Price unknown |
| Steam reviews | 88.3% positive (41,923 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Tripwire Interactive | Broken Chair Studios |
Side by side
- Both are Action games on Steam.
- Both support cooperative play.
- Killing Floor 2 is Deck Playable on Steam Deck; SAFE INSIDE has no Deck rating yet.
Killing Floor 2 vs SAFE INSIDE — FAQ
- Are Killing Floor 2 and SAFE INSIDE similar?
- They overlap on Action 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 Killing Floor 2 and SAFE INSIDE have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Killing Floor 2 ships Online Co-op, Co-op; SAFE INSIDE ships Online Co-op, Co-op.
- Does Killing Floor 2 run on Steam Deck?
- Yes — Killing Floor 2 is rated Deck Playable by Valve. SAFE INSIDE doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.