Alien Frontier: Last Line

Alien Frontier: Last Line is a top-down base-defense survival game. You are the last engineer on a hostile world, and every night the swarm comes for your Core.

Each wave is two phases. During prep, you scavenge crystal, lay walls, place turrets, and spend Mastery in a sprawling skill web. Then the assault lands — 26 alien species with real behaviour, from burrowers that surface inside your walls to shielded warriors you can only hurt from behind. Every fifth wave is a boss with a learnable, multi-phase fight.

Pick 6 turrets out of 18 before you deploy,y and the run is built around them: gatlings, railguns, tesla coils, mortars, cryo fields, minelayers, drone bays. Bolt augments onto them; promote them through veterancy; wire a power grid that browns out if you overbuild.

A campaign is four sectors, each with its own biome, hazards, and mission. Between them you choose where to jump — and only your skill web and your relics come with you. 40 relics, curse contracts that trade danger for Mastery, and ten threat tiers that keep raising the ceiling long after the first win.

No two runs generate the same world. Endless mode is there when you want to find out how far the line holds.