IMHO.

Core Decay vs Terfenstein 3D

Core Decay and Terfenstein 3D 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. 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 Core Decay

Choose Core Decay if you want a RPG experience.

Choose Terfenstein 3D

Choose Terfenstein 3D if you want an Indie experience. Terfenstein 3D launched in 2023.

Both Core Decay and Terfenstein 3D sit in Action 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

Core Decay vs Terfenstein 3D — Steam metadata comparison
Core Decay — Steam game coverCore DecayTerfenstein 3D — Steam game coverTerfenstein 3D
Released2023
GenresAction, RPGAction, Indie
PlatformsWindows, LinuxWindows
Steam DeckUnratedUnrated
PricePrice unknown4.99 USD
Steam reviews73.1% positive (67 reviews)
MultiplayerSingle-player onlySingle-player only
DevelopersIvar Hill, Slipgate Ironworks™Sandra Moen

Side by side

Core Decay vs Terfenstein 3D — FAQ

Are Core Decay and Terfenstein 3D 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.
Core Decay vs Terfenstein 3D — Verdict (2026) · imho.run