Choose Hearts of Iron III
Choose Hearts of Iron III if you want the Multi-player and Co-op side of the pairing. On Steam, it carries the stronger Steam consensus at 77.4% positive across 2,730 reviews.
Hearts of Iron III vs Project Wunderwaffe
Hearts of Iron III and Project Wunderwaffe 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 (2009) is 13 years older than Project Wunderwaffe (2022). Hearts of Iron III scores higher on Steam reviews (77.4% positive) than Project Wunderwaffe (58.5% 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 Project Wunderwaffe
Choose Project Wunderwaffe if you want an Action, Indie, and Adventure game with Steam Leaderboards. On Steam, it's the newer release (2022) and ships with the modern feature baseline. Project Wunderwaffe launched in 2022.
Both Hearts of Iron III and Project Wunderwaffe sit in Strategy on Steam, 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 |  Project Wunderwaffe | |
|---|---|---|
| Released | 2009 | 2022 |
| Genres | Strategy | Action, Strategy, Indie, Adventure |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Deck Unsupported | Unrated |
| Price | 2.49 USD | 14.99 USD |
| Steam reviews | 77.4% positive (2,730 reviews) | 58.5% positive (176 reviews) |
| Multiplayer | Multi-player, Co-op | Single-player only |
| Developers | Paradox Development Studio | Weasel Games |
Side by side
- Both are Strategy games on Steam.
- Hearts of Iron III (2009) is 13 years older than Project Wunderwaffe (2022).
- Hearts of Iron III scores higher on Steam reviews (77.4% positive) than Project Wunderwaffe (58.5% positive).
- Hearts of Iron III is currently ~83% cheaper on Steam than Project Wunderwaffe (2.49 USD vs. 14.99 USD).
- Hearts of Iron III has co-op; Project Wunderwaffe does not.
- Hearts of Iron III is Deck Unsupported on Steam Deck; Project Wunderwaffe has no Deck rating yet.
Hearts of Iron III vs Project Wunderwaffe — FAQ
- Which is better, Hearts of Iron III or Project Wunderwaffe?
- On Steam reviews Hearts of Iron III scores higher (77.4% positive) than Project Wunderwaffe (58.5% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Hearts of Iron III is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Hearts of Iron III or Project Wunderwaffe first?
- If you want chronology, Hearts of Iron III (2009) came out before Project Wunderwaffe (2022). 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 and Project Wunderwaffe 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.
- Does Project Wunderwaffe have multiplayer like Hearts of Iron III?
- No. Hearts of Iron III supports multiplayer on Steam (Multi-player, Co-op), while Project Wunderwaffe is listed as single-player only.