IMHO.

Undertale vs Astromeda

Undertale and Astromeda both land in RPG 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 RPG games on Steam. Undertale is Deck Playable on Steam Deck; Astromeda has no Deck rating yet. 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 Undertale

Choose Undertale if you want an Indie experience. 160,033 Steam reviews back the pick.

Choose Astromeda

Choose Astromeda if you want an Adventure experience.

Both Undertale and Astromeda sit in RPG on Steam, 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

Undertale vs Astromeda — Steam metadata comparison
Undertale — Steam game coverUndertaleAstromeda — Steam game coverAstromeda
Released2015
GenresIndie, RPGAdventure, RPG
PlatformsWindows, macOS, LinuxWindows, macOS, Linux
Steam DeckDeck PlayableUnrated
Price9.99 USDPrice unknown
Steam reviews96.6% positive (160,033 reviews)
MultiplayerSingle-player onlySingle-player only
DeveloperstobyfoxKamisa

Side by side

Undertale vs Astromeda — FAQ

Are Undertale and Astromeda similar?
They overlap on RPG 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 Undertale run on Steam Deck?
Yes — Undertale is rated Deck Playable by Valve. Astromeda doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Undertale vs Astromeda — Verdict (2026) · imho.run