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
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.
- 1Rock 'N' Roll Defense$0.09/1hr6h85.52%86.98%
- 2最后的仙门 The last Practice Sect$0.10/1hr41h83.33%52.93%
- 3Dungeon of the ENDLESS$0.16/1hr19h85.14%85.27%
- 4Plants vs. Zombies GOTY Edition$0.19/1hr27h96.92%97.69%
- 5Mindustry$0.24/1hr42h92.86%95.72%
- 6Bloons TD 6$0.25/1hr56h96.88%97.19%
- 7Dungeon Defenders$0.26/1hr59h90.27%93.09%
- 8Rusted Warfare - RTS$0.31/1hr16h89.82%96.35%
- 9Stronghold HD (2012)$0.32/1hr19h90.35%95.54%
- 10DG2: Defense Grid 2$0.33/1hr31h85.34%86.53%
- 11Cluckmech Oasis$0.34/1hr29h85.82%88.26%
- 12Stronghold Crusader HD (2012)$0.35/1hr29h93.46%97.52%
- 13Bloons TD 5$0.35/1hr29h90.23%94.66%
- 14Kingdom Rush - Tower Defense$0.40/1hr25h92.69%97.27%
- 15Kingdom Rush Frontiers - Tower Defense$0.42/1hr24h91.02%96.74%
- 16Progressbar95$0.44/1hr11h87.91%96.13%
- 17Age of Darkness: Final Stand$0.45/1hr31h79.55%74.46%
- 18Heretic's Fork$0.48/1hr21h84.96%85.01%
- 19Border Pioneer$0.49/1hr15h85.22%86.71%
- 20Craft The World$0.55/1hr34h87.11%88.39%
- 21The Front$0.57/1hr35h75.46%66.87%
- 22Wall World$0.58/1hr12h88.13%90.67%
- 23Dome Keeper$0.60/1hr30h89.95%92.34%
- 24Castle Story$0.63/1hr16h74.71%65.07%
- 25Orcs Must Die!$0.64/1hr16h89.96%95.86%
- 26Emberward$0.65/1hr31h88.24%96.95%
- 27Plants vs. Zombies: Battle for Neighborville$0.65/1hr14h75.73%70.82%
- 28Kingdom Two Crowns$0.66/1hr30h89.14%90.21%
- 29Kingdom Rush Origins - Tower Defense$0.68/1hr22h89.68%95.64%
- 30Ship of Fools$0.71/1hr14h83.84%82.07%
- 31Kingdom Rush Vengeance - Tower Defense$0.73/1hr27h89.58%93.87%
- 32Stronghold: Definitive Edition$0.76/1hr20h85.70%86.45%
- 33Kingdom Rush 5: Alliance TD$0.84/1hr24h86.71%88.23%
- 34Orcs Must Die! 2$0.87/1hr17h89.81%92.29%
- 35Tower Dominion$0.89/1hr20h85.17%85.60%
- 36Thronefall$0.89/1hr15h92.80%96.16%
- 37Artisan TD$0.91/1hr19h85.32%86.85%
- 38X-Morph: Defense$1.11/1hr18h86.86%91.48%
- 39Kingdom Eighties$1.16/1hr10h82.54%75.28%
- 40Bad North: Jotunn Edition$1.28/1hr12h89.71%93.26%
- 41Kingdom: New Lands$1.34/1hr11h85.23%85.47%
- 42Marfusha:Sentinel Girls $1.35/1hr6h87.14%94.05%
- 43Nordhold$1.39/1hr14h85.41%86.85%
- 44Ultimate Zombie Defense$1.51/1hr3h84.99%85.11%
- 45Warpips$1.70/1hr10h85.70%87.17%
- 46Rock of Ages$1.86/1hr5h86.99%92.04%
- 47Yet Another Zombie Defense HD$2.49/1hr2h84.19%82.09%
- 48Rock of Ages 2: Bigger & Boulder$2.61/1hr6h85.16%85.77%
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.