IMHO.

Serious Sam 3: BFE vs Alien Arena: Warriors Of Mars

Serious Sam 3: BFE and Alien Arena: Warriors Of Mars 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. Serious Sam 3: BFE (2011) is 6 years older than Alien Arena: Warriors Of Mars (2017). Serious Sam 3: BFE scores higher on Steam reviews (86% positive) than Alien Arena: Warriors Of Mars (79% positive). 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 3: BFE

Choose Serious Sam 3: BFE if you want the Shared/Split Screen, Shared/Split Screen PvP, and Shared/Split Screen Co-op side of the pairing. On Steam, it carries the stronger Steam consensus at 86% positive across 5,833 reviews.

Choose Alien Arena: Warriors Of Mars

Choose Alien Arena: Warriors Of Mars if it's free to play, so the barrier to trying it is zero. Alien Arena: Warriors Of Mars launched in 2017.

Both Serious Sam 3: BFE and Alien Arena: Warriors Of Mars sit in Action and Indie on Steam and both list Multi-player, Steam Leaderboards, and Online PvP, 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 3: BFE vs Alien Arena: Warriors Of Mars — Steam metadata comparison
Serious Sam 3: BFE — Steam game coverSerious Sam 3: BFEAlien Arena: Warriors Of Mars — Steam game coverAlien Arena: Warriors Of Mars
Released20112017
GenresAction, IndieAction, Indie
PlatformsWindows, macOS, LinuxWindows, Linux
Steam DeckDeck PlayableUnrated
Price29.99 USDFree to play
Steam reviews86% positive (5,833 reviews)79% positive (105 reviews)
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opMulti-player, Cross-Platform Multiplayer, Online Co-op
DevelopersCroteamCOR Entertainment, LLC

Side by side

Serious Sam 3: BFE vs Alien Arena: Warriors Of Mars — FAQ

Which is better, Serious Sam 3: BFE or Alien Arena: Warriors Of Mars?
On Steam reviews Serious Sam 3: BFE scores higher (86% positive) than Alien Arena: Warriors Of Mars (79% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Serious Sam 3: BFE is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
Should I play Serious Sam 3: BFE or Alien Arena: Warriors Of Mars first?
If you want chronology, Serious Sam 3: BFE (2011) came out before Alien Arena: Warriors Of Mars (2017). 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 3: BFE and Alien Arena: Warriors Of Mars 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 Serious Sam 3: BFE and Alien Arena: Warriors Of Mars have co-op?
Yes — both list a co-op category on Steam. Specifics differ: Serious Sam 3: BFE ships Online Co-op, Shared/Split Screen Co-op; Alien Arena: Warriors Of Mars ships Online Co-op, Co-op.
Is Alien Arena: Warriors Of Mars free?
Yes — Alien Arena: Warriors Of Mars is a free-to-play Steam title. Serious Sam 3: BFE is paid (29.99 USD).
Does Serious Sam 3: BFE run on Steam Deck?
Yes — Serious Sam 3: BFE is rated Deck Playable by Valve. Alien Arena: Warriors Of Mars doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Serious Sam 3: BFE vs Alien Arena: Warriors Of Mars · imho.run