IMHO.

FortressCraft Evolved! vs {Undefined}

FortressCraft Evolved! and {Undefined} both land in Strategy, Indie, Adventure 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 Strategy, Indie, Adventure on Steam. FortressCraft Evolved! (2015) is 6 years older than {Undefined} (2021). FortressCraft Evolved! scores higher on Steam reviews (71.4% positive) than {Undefined} (54.2% 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 FortressCraft Evolved!

Choose FortressCraft Evolved! if you want a RPG and Casual game with Steam Leaderboards, Online PvP, and Online Co-op. On Steam, it's currently about 48% cheaper on the Steam Store. 2,091 Steam reviews back the pick.

Choose {Undefined}

Choose {Undefined} if you want an Early Access game with LAN Co-op. On Steam, it's the newer release (2021) and ships with the modern feature baseline. {Undefined} launched in 2021.

Both FortressCraft Evolved! and {Undefined} sit in Strategy, Indie, and Adventure on Steam and both list Multi-player 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

FortressCraft Evolved! vs {Undefined} — Steam metadata comparison
FortressCraft Evolved! — Steam game coverFortressCraft Evolved!{Undefined} — Steam game cover{Undefined}
Released20152021
GenresStrategy, Indie, Adventure, Simulation, RPG, CasualStrategy, Indie, Adventure, Simulation, Early Access
PlatformsWindows, macOS, LinuxWindows
Steam DeckDeck PlayableUnrated
Price12.99 USD24.99 USD
Steam reviews71.4% positive (2,091 reviews)54.2% positive (24 reviews)
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opMulti-player, LAN Co-op, Co-op
DevelopersProjectorGamesFreshMountainStudios

Side by side

FortressCraft Evolved! vs {Undefined} — FAQ

Should I play FortressCraft Evolved! or {Undefined} first?
If you want chronology, FortressCraft Evolved! (2015) came out before {Undefined} (2021). 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 FortressCraft Evolved! and {Undefined} similar?
They overlap on Strategy, Indie, Adventure 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 FortressCraft Evolved! and {Undefined} have co-op?
Yes — both list a co-op category on Steam. Specifics differ: FortressCraft Evolved! ships Online Co-op, Co-op; {Undefined} ships LAN Co-op, Co-op.
Does FortressCraft Evolved! run on Steam Deck?
Yes — FortressCraft Evolved! is rated Deck Playable by Valve. {Undefined} doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
FortressCraft Evolved! vs {Undefined} — Verdict (2026) · imho.run