Swarm Fortress

Swarm Fortress combines horde survival and tower defense. You control a commander, fight waves of enemies yourself and build structures that shoot, block enemies or generate resources.

Day and night

The game alternates between two phases. During the day, enemies do not appear and you can spend as much as you want placing buildings. At night, building is unavailable, and you must survive the enemy waves. Between waves, you receive rewards such as resources, building unlocks, commander upgrades and allied units.

Rewards and technology

At the end of each night, you are offered rewards such as free building unlocks and upgrades to your commander's combat capabilities. These help you face enemies as their numbers and difficulty increase. You can also spend resources in the tech-tree tab to unlock specific buildings, giving you access to key technologies without relying entirely on random rewards.

Replayable strategies

Each run can play out differently depending on the rewards you receive. You might build a strategy around high-level turrets that deal area damage, or around spawners that create allied units to fight for you.