Line Tower Defense: Endless TD

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Content rating
Everyone
10+
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Content rating
Everyone
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About this game

Line Tower Defense is an idle tower defense game about building a long line of towers, merging units, and improving your strategy between waves.

Place towers on the grid, earn gold, merge duplicates, and upgrade your defense while enemy waves move toward your base. Each run starts small, then grows into a full defense line with Machine Gun, Sniper, Rocket, Freeze, Tesla, Stun, Multishot, aura towers, and more.

Choose bonus cards during battle, survive boss waves, and use the Tech Lab to unlock permanent upgrades. Every run gives Tech Points, so even a failed defense helps your next strategy.

Build your own tower setup:
- Merge towers for stronger units
- Upgrade damage, range, attack speed, crit, splash, stun chance, and aura effects
- Unlock new tower branches in the Tech Lab
- Pick bonus cards and blessings during combat
- Fight normal enemies, fast enemies, tanks, flying enemies, elite bosses, and world bosses
- Restart runs to claim Tech Points and grow stronger

If you like strategy games, idle tower defense, base defense, merge games, roguelite upgrades, and wave survival, Line Tower Defense gives you a compact battle map with deep progression and fast decisions.

Defend the line. Upgrade the lab. Survive longer every run.
Updated on
Jul 28, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

bug fix