Choose Hearts of Iron III: Semper Fi
Choose Hearts of Iron III: Semper Fi if it's currently about 83% cheaper on the Steam Store. Hearts of Iron III: Semper Fi launched in 2010.
Hearts of Iron III: Semper Fi vs Hearts of Iron IV
Hearts of Iron III: Semper Fi and Hearts of Iron IV both land in 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 are Strategy games on Steam. Hearts of Iron III: Semper Fi (2010) is 6 years older than Hearts of Iron IV (2016). Hearts of Iron III: Semper Fi is currently ~83% cheaper on Steam than Hearts of Iron IV (2.49 USD vs. 14.99 USD). 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 Hearts of Iron IV
Choose Hearts of Iron IV if you want a Simulation experience. On Steam, it's the newer release (2016) and ships with the modern feature baseline. 120,833 Steam reviews back the pick.
Both Hearts of Iron III: Semper Fi and Hearts of Iron IV sit in Strategy on Steam and both list Multi-player and Co-op, 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 III: Semper Fi |  Hearts of Iron IV | |
|---|---|---|
| Released | 2010 | 2016 |
| Genres | Strategy | Strategy, Simulation |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Unrated | Deck Playable |
| Price | 2.49 USD | 14.99 USD |
| Steam reviews | 1 reviews | 91.1% positive (120,833 reviews) |
| Multiplayer | Multi-player, Co-op | Multi-player, Cross-Platform Multiplayer, Co-op |
| Developers | Paradox Development Studio | Paradox Development Studio |
Side by side
- Both are Strategy games on Steam.
- Hearts of Iron III: Semper Fi (2010) is 6 years older than Hearts of Iron IV (2016).
- Hearts of Iron III: Semper Fi is currently ~83% cheaper on Steam than Hearts of Iron IV (2.49 USD vs. 14.99 USD).
- Both support cooperative play.
- Hearts of Iron IV is Deck Playable on Steam Deck; Hearts of Iron III: Semper Fi has no Deck rating yet.
Hearts of Iron III: Semper Fi vs Hearts of Iron IV — FAQ
- Should I play Hearts of Iron III: Semper Fi or Hearts of Iron IV first?
- If you want chronology, Hearts of Iron III: Semper Fi (2010) came out before Hearts of Iron IV (2016). 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 Hearts of Iron III: Semper Fi and Hearts of Iron IV similar?
- They overlap on 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.
- Do both Hearts of Iron III: Semper Fi and Hearts of Iron IV have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Hearts of Iron III: Semper Fi ships Co-op; Hearts of Iron IV ships Co-op.