Choose Killing Floor: Incursion
Choose Killing Floor: Incursion if you want the Multi-player, Online Co-op, and Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend. Killing Floor: Incursion launched in 2017.
Killing Floor: Incursion vs Zomb Zerro - 999
Killing Floor: Incursion and Zomb Zerro - 999 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. Killing Floor: Incursion has co-op; Zomb Zerro - 999 does not. Killing Floor: Incursion is Deck Unsupported on Steam Deck; Zomb Zerro - 999 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 Zomb Zerro - 999
Choose Zomb Zerro - 999 if you want an Adventure game with Custom Volume Controls, Stereo Sound, and Surround Sound. On Steam, it's a focused single-player run rather than a multiplayer commitment.
Both Killing Floor: Incursion and Zomb Zerro - 999 sit in Action on Steam and both list Tracked Controller Support and VR Only, 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: Incursion |  Zomb Zerro - 999 | |
|---|---|---|
| Released | 2017 | — |
| Genres | Action | Action, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Deck Unsupported | Unrated |
| Price | 19.99 USD | Price unknown |
| Steam reviews | 48.3% positive (453 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | Tripwire Interactive | ApexAurora |
Side by side
- Both are Action games on Steam.
- Killing Floor: Incursion has co-op; Zomb Zerro - 999 does not.
- Killing Floor: Incursion is Deck Unsupported on Steam Deck; Zomb Zerro - 999 has no Deck rating yet.
Killing Floor: Incursion vs Zomb Zerro - 999 — FAQ
- Are Killing Floor: Incursion and Zomb Zerro - 999 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.
- Does Zomb Zerro - 999 have multiplayer like Killing Floor: Incursion?
- No. Killing Floor: Incursion supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Zomb Zerro - 999 is listed as single-player only.