Choose Serious Sam: Siberian Mayhem
Choose Serious Sam: Siberian Mayhem if you want an Adventure experience. 1,520 Steam reviews back the pick.
Serious Sam: Siberian Mayhem vs RIFTFALL
Serious Sam: Siberian Mayhem and RIFTFALL 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. Serious Sam: Siberian Mayhem (2022) is 4 years older than RIFTFALL (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 RIFTFALL
Choose RIFTFALL if you want an Indie game with Steam Leaderboards. On Steam, it's the newer release (2026) and ships with the modern feature baseline. RIFTFALL launched in 2026.
Both Serious Sam: Siberian Mayhem and RIFTFALL 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
 Serious Sam: Siberian Mayhem |  RIFTFALL | |
|---|---|---|
| Released | 2022 | 2026 |
| Genres | Action, Adventure | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 19.99 USD | Price unknown |
| Steam reviews | 91.4% positive (1,520 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Croteam, Timelock Studio | GameEra Studios |
Side by side
- Both are Action games on Steam.
- Serious Sam: Siberian Mayhem (2022) is 4 years older than RIFTFALL (2026).
- Both support cooperative play.
- Serious Sam: Siberian Mayhem is Deck Playable on Steam Deck; RIFTFALL has no Deck rating yet.
Serious Sam: Siberian Mayhem vs RIFTFALL — FAQ
- Should I play Serious Sam: Siberian Mayhem or RIFTFALL first?
- If you want chronology, Serious Sam: Siberian Mayhem (2022) came out before RIFTFALL (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 Serious Sam: Siberian Mayhem and RIFTFALL 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 Serious Sam: Siberian Mayhem and RIFTFALL have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Serious Sam: Siberian Mayhem ships Online Co-op, Co-op; RIFTFALL ships Online Co-op, Co-op.
- Does Serious Sam: Siberian Mayhem run on Steam Deck?
- Yes — Serious Sam: Siberian Mayhem is rated Deck Playable by Valve. RIFTFALL doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.