Turn-based strategy game.
Windowed or fullscreen.
Can be controlled with mouse-only. RMB needed but manageable with mouse button switching tools.
Subtitles are available and easy to decipher
Sound can be muted and there are several volume sliders for Ambient, Cutscenes, Spoken text, etc.
Has tutorial and few settings to change gameplay difficulty. Here you can turn off corpses, as well.