Disclaimer: This is a not-for-profit project that has no affiliation with either BioWare or EA whose Mass Effect universe it is set in.
Rogue Effect is a sci-fi themed 2D ASCII* roguelike based on Mass Effect 3 and, more specifically, its multiplayer component. (Though Rogue Effect is solely a singleplayer experience.)
You play as an N7 operative infiltrating a Cerberus base on planet Sanctum. Your goal is to make it through 11 levels while fighting Cerberus forces and completing secondary objectives.
Rogue Effect is programmed in C++ under libtcod aka The Doryen library.
Download: Rogue Effect v1.0 (Windows) -- 2017-09-25
Requires Microsoft Visual C++ 2010 Redistributable Package to run. (x86 for 32bit or x64 for 64bit Windows)