Games to try

Humble bundle games

Evo :: like oldschool Final Fantasy
Planet Stronghold :: rpg/old Might & Magic
Defender quest :: rpg/tower defence
Crownmakers :: oldtime rpg with turnbased combat
Crimsonland :: oldtime topdown shooter
Blackguard 1+2
Abyss odyssey

XCOM - Enemy Unknown
XCOM2
XCOM - Long War mod (https://www.pavonisinteractive.com/longwar2_features.htm)

fault milestone one (linux)
fault - milestone two side:above (linux)

Non-humble bundle games

Rebel Galaxy (elite’ish game - indie)