Best Value Grand Strategy Games Under $20

The Grand Strategy games on Steam games under $20 that deliver the most playtime per dollar: median reviewer hours divided by current price.

By price

Price divided by median reviewer playtime — how much you pay per hour of gameplay. Lower is better. Reviewers tend to sink more hours in than the average owner, so treat this as an optimistic estimate. Free games are excluded because there's no price to divide by.
  1. 1Civilization IV: Beyond the Sword$0.03/1hr
  2. 2Supreme Commander: Forged Alliance$0.03/1hr
  3. 3Sid Meier's Civilization III Complete$0.04/1hr
  4. 4X4: Foundations$0.07/1hr
  5. 5Supreme Commander 2$0.08/1hr
  6. 6Hexarchy$0.09/1hr
  7. 7Age of History II$0.13/1hr
  8. 8ENDLESS Legend$0.13/1hr
  9. 9Terra Invicta$0.17/1hr
  10. 10Terraforming Mars$0.17/1hr
  11. 11Victoria II$0.21/1hr
  12. 12Airships: Conquer the Skies$0.24/1hr
  13. 13Sins of a Solar Empire: Rebellion$0.28/1hr
  14. 14Iron Harvest$0.31/1hr
  15. 15Legend of Heroes: Three Kingdoms$0.36/1hr
  16. 16Age of History 3$0.36/1hr
  17. 17STAR WARS Empire at War - Gold Pack$0.39/1hr
  18. 18Knights of Honor II: Sovereign$0.39/1hr
  19. 19Fantasy Map Simulator$0.44/1hr
  20. 20Anno 1404 - History Edition$0.45/1hr
  21. 21Dummynation$0.62/1hr
  22. 22Romance of the Three Kingdoms XIII$0.72/1hr
  23. 23Buggos$0.87/1hr
  24. 24Breachway$0.90/1hr
  25. 25Sid Meier's Civilization IV$1.26/1hr
  26. 26Ultimate Epic Battle Simulator 2$2.12/1hr

How the math works: we sample each game’s Steam reviewers, take the median of their total recorded playtime (lifetime hours, not hours at the time of review), and divide it by the game’s current price in your selected currency. Reviewers usually sink more hours in than the average owner, so the numbers run generous. Free games aren’t listed because there’s no price to divide by, and a game needs playtime data from at least 20 reviewers before it qualifies. All prices are Steam’s own regional prices, never exchange-rate conversions.