Defend the rift by placing arrow, cannon, frost or arcane towers along the path and upgrading each one to hold back 25 waves of enemies.
Pick a tower card and place it on a build spot next to the path. Click a placed tower to upgrade it (3 levels) or sell it.
Call each wave early for bonus gold and switch between x1/x2 speed from the HUD. Pause and mute live there too.


Rift Guard TD is a tower defense where strategy beats luck. Build arrow, cannon, frost or arcane towers along procedurally generated paths and upgrade each one through three levels to keep pace with the horde. Grunts soak damage, runners sprint past slow guns, brutes shrug off light hits, sylphs fly over the crowd, specters shrug off magic, and the wave-25 boss tests every build you have. The fixed-timestep engine runs the whole battle at 60 ticks per second with no randomness between runs, so you can tune a defense, replay it and watch your plan hold. Economy is the second game: every kill pays, cleared waves pay more, and calling the next wave early pays most of all, if your line can take the pressure. Three difficulties with their own procedural maps make this a free browser game you can play in short sessions with mouse or touch.
In the mood for real-time conquest? Frontier io lets you expand your territory against rival commanders, free in the browser.