Choose Cossacks 3
Choose Cossacks 3 if you want the Multi-player, Online PvP, and Online Co-op side of the pairing. On Steam, it's currently about 33% cheaper on the Steam Store. 3,273 Steam reviews back the pick.
Cossacks 3 vs Diplomacy is Not an Option
Cossacks 3 and Diplomacy is Not an Option both land in Action, Strategy, Adventure 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 Action, Strategy, Adventure on Steam. Cossacks 3 (2016) is 8 years older than Diplomacy is Not an Option (2024). Diplomacy is Not an Option scores higher on Steam reviews (84.1% positive) than Cossacks 3 (78.2% 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 Diplomacy is Not an Option
Choose Diplomacy is Not an Option if you want an Indie, Simulation, and Casual experience. On Steam, it carries the stronger Steam consensus at 84.1% positive across 4,634 reviews.
Both Cossacks 3 and Diplomacy is Not an Option sit in Action, Strategy, and Adventure 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
 Cossacks 3 |  Diplomacy is Not an Option | |
|---|---|---|
| Released | 2016 | 2024 |
| Genres | Action, Strategy, Adventure | Action, Strategy, Indie, Adventure, Simulation, Casual |
| Platforms | Windows, Linux | Windows |
| Steam Deck | Deck Unsupported | Deck Playable |
| Price | 19.99 USD | 29.99 USD |
| Steam reviews | 78.2% positive (3,273 reviews) | 84.1% positive (4,634 reviews) |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | GSC Game World | Door 407 |
Side by side
- Both share Action, Strategy, Adventure on Steam.
- Cossacks 3 (2016) is 8 years older than Diplomacy is Not an Option (2024).
- Diplomacy is Not an Option scores higher on Steam reviews (84.1% positive) than Cossacks 3 (78.2% positive).
- Cossacks 3 is currently ~33% cheaper on Steam than Diplomacy is Not an Option (19.99 USD vs. 29.99 USD).
- Cossacks 3 has co-op; Diplomacy is Not an Option does not.
- Steam Deck: Cossacks 3 is Deck Unsupported, Diplomacy is Not an Option is Deck Playable.
Cossacks 3 vs Diplomacy is Not an Option — FAQ
- Which is better, Cossacks 3 or Diplomacy is Not an Option?
- On Steam reviews Diplomacy is Not an Option scores higher (84.1% positive) than Cossacks 3 (78.2% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Diplomacy is Not an Option is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Cossacks 3 or Diplomacy is Not an Option first?
- If you want chronology, Cossacks 3 (2016) came out before Diplomacy is Not an Option (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 Cossacks 3 and Diplomacy is Not an Option similar?
- They overlap on Action, Strategy, Adventure 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 Diplomacy is Not an Option have multiplayer like Cossacks 3?
- No. Cossacks 3 supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Diplomacy is Not an Option is listed as single-player only.