Best Value Tower Defense Games Under $20

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

All Indie Action Adventure Simulation RPG Strategy Co-op Open World Story Rich Casual Funny Survival Difficult Pixel Graphics PvP Horror Anime Puzzle Rogue-like Relaxing Turn-Based Strategy Local Co-Op Psychological Horror Hack and Slash Platformer MMO RTS Immersive Sim Post-apocalyptic Action Roguelike City Builder Life Sim Zombies Sports Racing Survival Horror Stealth Bullet Hell Dungeon Crawler Visual Novel JRPG Deckbuilding Grand Strategy Cyberpunk Tower Defense Clicker Fighting Open World Survival Craft Boomer Shooter Colony Sim Farming Sim Cozy Auto Battler Cooking Twin Stick Shooter Metroidvania 4X Souls-like Dating Sim MMORPG

By price

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Median reviewer playtime divided by price. 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. 1Wall World14 h/$
  2. 2Rock 'N' Roll Defense12 h/$
  3. 3Dungeon of the ENDLESS11 h/$
  4. 4最后的仙门 The last Practice Sect10 h/$
  5. 5Orcs Must Die! 28.1 h/$
  6. 6The Riftbreaker7.0 h/$
  7. 7Orcs Must Die!6.2 h/$
  8. 8Plants vs. Zombies GOTY Edition6.2 h/$
  9. 9Mindustry5.7 h/$
  10. 10Bloons TD 64.8 h/$
  11. 11Rusted Warfare - RTS4.4 h/$
  12. 12Dome Keeper4.3 h/$
  13. 13METAL SLUG ATTACK RELOADED4.2 h/$
  14. 14Tower Dominion4.2 h/$
  15. 15GemCraft - Chasing Shadows3.6 h/$
  16. 16Warpips3.4 h/$
  17. 17X-Morph: Defense3.3 h/$
  18. 18Stronghold HD (2012)3.3 h/$
  19. 19Ship of Fools3.2 h/$
  20. 20Stronghold Crusader HD (2012)3.0 h/$
  21. 21Craft The World2.7 h/$
  22. 22Emberward2.6 h/$
  23. 23Diplomacy is Not an Option2.4 h/$
  24. 24Dungeon Defenders2.4 h/$
  25. 25The Front2.4 h/$
  26. 26Rogue Tower2.3 h/$
  27. 27Kingdom Rush Frontiers - Tower Defense2.2 h/$
  28. 28Orcs Must Die! 32.2 h/$
  29. 29Kingdom Rush - Tower Defense2.2 h/$
  30. 30Progressbar952.0 h/$
  31. 31DG2: Defense Grid 21.8 h/$
  32. 32Castle Story1.8 h/$
  33. 33Cluckmech Oasis1.5 h/$
  34. 34Kingdom Rush Vengeance - Tower Defense1.5 h/$
  35. 35Element TD 2 - Tower Defense1.5 h/$
  36. 36Bloons TD 51.5 h/$
  37. 37Orcs Must Die! Deathtrap1.3 h/$
  38. 38Kingdom Two Crowns1.2 h/$
  39. 39Kingdom Rush Origins - Tower Defense1.1 h/$
  40. 40Stronghold: Definitive Edition1.1 h/$
  41. 41Heretic's Fork1.0 h/$
  42. 42Border Pioneer1.0 h/$
  43. 43Artisan TD1.0 h/$
  44. 44Thronefall1.0 h/$
  45. 45Kingdom Rush 5: Alliance TD0.9 h/$
  46. 46Ultimate Zombie Defense0.8 h/$
  47. 47Bad North: Jotunn Edition0.7 h/$
  48. 48Kingdom: New Lands0.7 h/$
  49. 49Nordhold0.7 h/$
  50. 50Kingdom Eighties0.5 h/$
  51. 51Rock of Ages 2: Bigger & Boulder0.5 h/$

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.