IMHO.

Old World vs Millennia

Old World and Millennia both land in Strategy, Simulation 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, Simulation on Steam. Old World (2022) is 2 years older than Millennia (2024). Old World scores higher on Steam reviews (84.3% positive) than Millennia (68.1% 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 Old World

Choose Old World if you want a RPG game with Shared/Split Screen, Shared/Split Screen PvP, and Online Co-op. On Steam, it carries the stronger Steam consensus at 84.3% positive across 3,708 reviews.

Choose Millennia

Choose Millennia if it matches what drew you to this matchup. 1,892 Steam reviews back the pick.

Both Old World and Millennia sit in Strategy and Simulation 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

Old World vs Millennia — Steam metadata comparison
Old World — Steam game coverOld WorldMillennia — Steam game coverMillennia
Released20222024
GenresStrategy, Simulation, RPGStrategy, Simulation
PlatformsWindows, macOS, LinuxWindows
Steam DeckDeck PlayableDeck Playable
Price39.99 USD39.99 USD
Steam reviews84.3% positive (3,708 reviews)68.1% positive (1,892 reviews)
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opMulti-player
DevelopersMohawk GamesC Prompt Games

Side by side

Old World vs Millennia — FAQ

Which is better, Old World or Millennia?
On Steam reviews Old World scores higher (84.3% positive) than Millennia (68.1% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Old World is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
Should I play Old World or Millennia first?
If you want chronology, Old World (2022) came out before Millennia (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 Old World and Millennia similar?
They overlap on Strategy, Simulation 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.