Choose Hearts of Iron IV
Choose Hearts of Iron IV if you want the Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend. 120,833 Steam reviews back the pick.
Hearts of Iron IV vs Three Kingdoms Online
Hearts of Iron IV and Three Kingdoms Online 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. Hearts of Iron IV has co-op; Three Kingdoms Online does not. Hearts of Iron IV is Deck Playable on Steam Deck; Three Kingdoms Online 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 Three Kingdoms Online
Choose Three Kingdoms Online if you want the Online PvP, LAN PvP, and PvP side of the pairing.
Both Hearts of Iron IV and Three Kingdoms Online sit in Strategy and Simulation on Steam and both list Multi-player, 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
 Hearts of Iron IV |  Three Kingdoms Online | |
|---|---|---|
| Released | 2016 | — |
| Genres | Strategy, Simulation | Strategy, Simulation |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 14.99 USD | Price unknown |
| Steam reviews | 91.1% positive (120,833 reviews) | — |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Co-op | Multi-player, Cross-Platform Multiplayer |
| Developers | Paradox Development Studio | GE Soft |
Side by side
- Both share Strategy, Simulation on Steam.
- Hearts of Iron IV has co-op; Three Kingdoms Online does not.
- Hearts of Iron IV is Deck Playable on Steam Deck; Three Kingdoms Online has no Deck rating yet.
Hearts of Iron IV vs Three Kingdoms Online — FAQ
- Are Hearts of Iron IV and Three Kingdoms Online 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.
- Does Hearts of Iron IV run on Steam Deck?
- Yes — Hearts of Iron IV is rated Deck Playable by Valve. Three Kingdoms Online doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.