IMHO.

Serious Sam Fusion 2017 (beta) vs Alien Infection

Serious Sam Fusion 2017 (beta) and Alien Infection 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. Alien Infection is currently ~73% cheaper on Steam than Serious Sam Fusion 2017 (beta) (3.99 USD vs. 14.99 USD). Serious Sam Fusion 2017 (beta) has co-op; Alien Infection does not. 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 Serious Sam Fusion 2017 (beta)

Choose Serious Sam Fusion 2017 (beta) if you want the Multi-player, Shared/Split Screen, and Online PvP side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 1,703 Steam reviews back the pick.

Choose Alien Infection

Choose Alien Infection if it's currently about 73% cheaper on the Steam Store. Alien Infection launched in 2019.

Both Serious Sam Fusion 2017 (beta) and Alien Infection sit in Action and Indie on Steam and both list Steam Leaderboards, Tracked Controller Support, and VR Supported, 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 Fusion 2017 (beta) vs Alien Infection — Steam metadata comparison
Serious Sam Fusion 2017 (beta) — Steam game coverSerious Sam Fusion 2017 (beta)Alien Infection — Steam game coverAlien Infection
Released—2019
GenresAction, IndieAction, Indie
PlatformsWindows, macOS, LinuxWindows, macOS, Linux
Steam DeckDeck VerifiedUnrated
Price14.99 USD3.99 USD
Steam reviews92.1% positive (1,703 reviews)3 reviews
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opSingle-player only
DevelopersCroteamVice Age

Side by side

Serious Sam Fusion 2017 (beta) vs Alien Infection — FAQ

Are Serious Sam Fusion 2017 (beta) and Alien Infection 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.
Does Alien Infection have multiplayer like Serious Sam Fusion 2017 (beta)?
No. Serious Sam Fusion 2017 (beta) supports multiplayer on Steam (Multi-player, Cross-Platform Multiplayer, Online Co-op), while Alien Infection is listed as single-player only.
Does Serious Sam Fusion 2017 (beta) run on Steam Deck?
Yes — Serious Sam Fusion 2017 (beta) is rated Deck Verified by Valve. Alien Infection doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Serious Sam Fusion 2017 (beta) vs Alien Infection · imho.run