The best diplomacy indie games, ranked by reviews

Data report Assembled from live indielist data on 2026-06-06. Rankings update as data changes.

indielist tracks 9 diplomacy indie games on Steam, holding 46,985 reviews at an average of 81% positive. This list ranks them by Steam review count, the most reliable public sales proxy, with a white-box sales estimate behind every title. The most reviewed is Dune: Spice Wars with 13,374 reviews. Figures are tracked by indielist; sales numbers are modeled estimates that each expand into their full formula.

The ranking

1. Dune: Spice Wars · 13,374 reviews · 79% positive · 2023
2. HighFleet · 7,259 reviews · 88% positive · 2021
3. Democracy 4 · 6,314 reviews · 82% positive · 2022
4. SUPREMACY: WORLD WAR 3 · 5,905 reviews · 75% positive · 2018
5. Guilty as Sock! · 5,397 reviews · 90% positive · 2025
6. Cepheus Protocol · 3,599 reviews · 76% positive · 2020
7. Dummynation · 3,080 reviews · 88% positive · 2022
8. Microcivilization · 1,387 reviews · 80% positive · 2026
9. Lawgivers II · 670 reviews · 70% positive · 2023

How this list is built

Games are ranked by Steam review count, the most reliable public proxy for sales when actual figures are private. Each title links to its indielist page, where the white-box sales estimate expands into the full Boxleiter formula, so you can audit the number rather than trust a black box. Review counts come from Steam; sales figures are modeled estimates, not official sales data.

Want the underlying estimate for your own game? Try the sales estimator, or browse the full game directory.