HomeGamesStrategyIdle Fortress: First AscentGames like Idle Fortress: First Ascent Here are some great alternatives to Idle Fortress: First Ascent by MrArni : War Strategy: Tower Defense ★4.1 War Strategy 2: Tower Defense ★3.6 Monster Defender ★4.2 TD - War Strategy Game ★4.1 Defenders 2: Tower Defense ★3.6 Broken Universe: Tower Defense ★4.0 Galaxy War Tower Defense ★4.2 Tower Gun Army - Merge Defense ★3.4 Tower Rush - TD ★4.1 Defense Battle ★3.8 Idle Tower Rush ★4.7 Zombie Tower Defense ★4.3 Monster Tiles TD: Tower Wars ★4.2 Tower Defense: Battle Zone ★4.4 Base Defense ★3.4 Idle Monster TD: Monster Games ★4.0