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Alteil: Horizons vs Rival Books of Aster

Alteil: Horizons and Rival Books of Aster both land in Strategy, 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 Strategy, Indie on Steam. Alteil: Horizons (2016) is 8 years older than Rival Books of Aster (2024). Rival Books of Aster scores higher on Steam reviews (72% positive) than Alteil: Horizons (48.9% 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 Alteil: Horizons

Choose Alteil: Horizons if you want a Free To Play experience. Alteil: Horizons launched in 2016.

Choose Rival Books of Aster

Choose Rival Books of Aster if you want a Casual experience. On Steam, it's the newer release (2024) and ships with the modern feature baseline. Rival Books of Aster launched in 2024.

Both Alteil: Horizons and Rival Books of Aster sit in Strategy and Indie 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

Alteil: Horizons vs Rival Books of Aster — Steam metadata comparison
Alteil: Horizons — Steam game coverAlteil: HorizonsRival Books of Aster — Steam game coverRival Books of Aster
Released20162024
GenresStrategy, Indie, Free To PlayStrategy, Indie, Casual
PlatformsWindowsWindows, macOS
Steam DeckUnratedUnrated
PriceFree to playFree to play
Steam reviews48.9% positive (90 reviews)72% positive (50 reviews)
MultiplayerMulti-player, Cross-Platform MultiplayerMulti-player, Cross-Platform Multiplayer
DevelopersApocoplay LLC, Ludeme Games, Coreedge IncGames by Stitch

Side by side

Alteil: Horizons vs Rival Books of Aster — FAQ

Should I play Alteil: Horizons or Rival Books of Aster first?
If you want chronology, Alteil: Horizons (2016) came out before Rival Books of Aster (2024). 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 Alteil: Horizons and Rival Books of Aster similar?
They overlap on Strategy, 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.
Alteil: Horizons vs Rival Books of Aster (2026) · imho.run