Threat Triangle

threatTriangle is a Linux First 2D local co-op survival arena shooter for 1–4 players. Fight escalating waves of enemies spawning from destructible portals on a large bounded map. 
Level up between waves by picking upgrade cards, unlock new weapons, and survive as long as you can. The game features dynamic split-screen, LUA-modding, roguelite progression, and endless scaling difficulty

This is the first ever game I have ever made.  I have many years of software development though.  As this is EARLY ACCESS, please note that bugs are to be expected.