RetroTD: Endless Tower Defense

Shape the battlefield in Open Maps! Redirect enemies, build without a total turret limit, and master three sizes—from Open Eyes to Open World.

RetroTD v2 is a strategic offline tower defense game where every placement matters.

Build powerful defenses, upgrade your towers, unlock permanent Research, and survive increasingly dangerous enemy waves. Choose between Desktop TD-style Open Maps, where you shape the enemy route yourself, and handcrafted Classic Maps with fixed paths.

Easy to learn. Difficult to master.

DESKTOP TD-STYLE OPEN MAPS

Open Maps bring classic Desktop TD-style path building to RetroTD.

Enemies always calculate the shortest available path from spawn to base. Place turrets directly on the battlefield to create walls, shape the route, and force enemies onto longer, more dangerous paths—but you can never block the base completely.

Master three different battlefield sizes:

• Open Eyes! • Open Minded! • Open World!

Open Maps remove the total turret limit, while special tower limits keep every battle strategic. Gold Mines always operate at 100% efficiency.

MASTER CLASSIC MAPS

Prefer traditional tower defense?

Classic Maps feature carefully designed fixed routes. Study each battlefield, find the strongest build locations, and create the perfect combination of damage, range, speed, crowd control, and economy.

BUILD YOUR DEFENSE

Build and upgrade:

• Gun Towers • Rocket Towers • Freeze Towers • Splash Towers • Gold Mines • Dynamites • Claymores

Every tower and support weapon has a unique role. Combine direct damage, explosive attacks, slowing effects, tactical weapons, and income generation to survive longer.

OUTSMART UNIQUE ENEMIES

No two enemy types require the same strategy.

Face standard enemies, bosses, runners, giants, flyers, and more. Study their strengths and weaknesses with the in-game Enemy Intel system, then adapt your defense before the next wave arrives.

PERMANENT RESEARCH

Every run helps you become stronger.

Earn Diamonds and unlock permanent upgrades for your towers, weapons, economy, critical hits, targeting, game speed, and more.

Build your long-term strategy through:

• Permanent Research upgrades • Military ranks • Daily Challenges • Research progression • Rank-based rewards • Monthly Diamond rewards

Your Research decisions shape every future run.

COMPETE ON EVERY MAP

Every map has its own leaderboard.

Improve your personal best, challenge players from around the world, climb through the military ranks, and compete for monthly Diamond rewards.

Can you become the Legend?

SURVIVE ENDLESS MODE

Test your strongest strategy against an endless assault. Build, upgrade, and adapt as the waves continue to grow more dangerous.

How long can you survive?

PLAY OFFLINE

RetroTD is designed to be played offline.

Play anywhere—even without an internet connection. Your progress is stored locally and can synchronize when you reconnect.

No energy system. No forced waiting. Just strategic tower defense gameplay.

FOR FANS OF

• Tower Defense Games • Strategy Games • Offline Games • Base Defense Games • Wave Survival Games • Upgrade Games • Retro Games • Desktop TD-style Games

Build smarter. Shape the battlefield. Research further. Survive longer.

Become the Legend.