Choose Retrograde
Choose Retrograde if you want a Massively Multiplayer experience. Retrograde launched in 2021.
Retrograde vs X Killerz
Retrograde and X Killerz both land in Action, Indie 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 on Steam. Retrograde (2021) is 6 years older than X Killerz (2027). 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 X Killerz
Choose X Killerz if you want the DualShock Controller Support, DualSense Controller Support, and Steam Input API Support side of the pairing. On Steam, it's the newer release (2027) and ships with the modern feature baseline. X Killerz launched in 2027.
Both Retrograde and X Killerz sit in Action and Indie on Steam and both list Multi-player, Online PvP, and Online 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
 Retrograde |  X Killerz | |
|---|---|---|
| Released | 2021 | 2027 |
| Genres | Action, Indie, Massively Multiplayer | Action, Indie |
| Platforms | Windows | Windows, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 10.99 USD | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Online Co-op, LAN Co-op | Multi-player, Online Co-op, LAN Co-op |
| Developers | Steven Krupski | Kennedy Bros. Games |
Side by side
- Both share Action, Indie on Steam.
- Retrograde (2021) is 6 years older than X Killerz (2027).
- Both support cooperative play.
Retrograde vs X Killerz — FAQ
- Should I play Retrograde or X Killerz first?
- If you want chronology, Retrograde (2021) came out before X Killerz (2027). 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 Retrograde and X Killerz similar?
- They overlap on Action, Indie 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 Retrograde and X Killerz have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Retrograde ships Online Co-op, LAN Co-op; X Killerz ships Online Co-op, LAN Co-op.