IMHO.

Warhammer 40,000: Regicide vs The Horus Heresy: Betrayal at Calth

Warhammer 40,000: Regicide and The Horus Heresy: Betrayal at Calth both land in Action, Strategy 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, Strategy on Steam. Warhammer 40,000: Regicide (2015) is 5 years older than The Horus Heresy: Betrayal at Calth (2020). Warhammer 40,000: Regicide scores higher on Steam reviews (67.2% positive) than The Horus Heresy: Betrayal at Calth (41.6% 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 Warhammer 40,000: Regicide

Choose Warhammer 40,000: Regicide if you want an Indie game with Shared/Split Screen and Shared/Split Screen PvP. Warhammer 40,000: Regicide launched in 2015.

Choose The Horus Heresy: Betrayal at Calth

Choose The Horus Heresy: Betrayal at Calth if you want the VR Supported side of the pairing. On Steam, it's the newer release (2020) and ships with the modern feature baseline. The Horus Heresy: Betrayal at Calth launched in 2020.

Both Warhammer 40,000: Regicide and The Horus Heresy: Betrayal at Calth sit in Action and Strategy on Steam and both list Multi-player, Online PvP, and 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

Warhammer 40,000: Regicide vs The Horus Heresy: Betrayal at Calth — Steam metadata comparison
Warhammer 40,000: Regicide — Steam game coverWarhammer 40,000: RegicideThe Horus Heresy: Betrayal at Calth — Steam game coverThe Horus Heresy: Betrayal at Calth
Released20152020
GenresAction, Strategy, IndieAction, Strategy
PlatformsWindowsWindows
Steam DeckUnratedUnrated
PricePrice unknownPrice unknown
Steam reviews67.2% positive (984 reviews)41.6% positive (77 reviews)
MultiplayerMulti-player, Cross-Platform MultiplayerMulti-player, Cross-Platform Multiplayer
DevelopersHammerfall PublishingSteel Wool Studios

Side by side

Warhammer 40,000: Regicide vs The Horus Heresy: Betrayal at Calth — FAQ

Should I play Warhammer 40,000: Regicide or The Horus Heresy: Betrayal at Calth first?
If you want chronology, Warhammer 40,000: Regicide (2015) came out before The Horus Heresy: Betrayal at Calth (2020). 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 Warhammer 40,000: Regicide and The Horus Heresy: Betrayal at Calth similar?
They overlap on Action, Strategy 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.