With so few good new titles being released these days, especially by major studios, I figured I'd make a thread for everyone to share your favourite classic or older games, especially if they're lesser-known titles that others might have missed at the time.
I'll open with The Saboteur (2009), Mercenaries (2005) and Saints Row 2 ( The 2008 original)
Age of Wonders, Tales of Maj'Eyal, Rimworld, Factorio, Battle Brothers, UnReal World, Mount and Blade (and Warband), Kenshi, Kerbal Space Program (not 2, never 2), FTL and In to the Breach, The Bard's Tale (the first 3 were remastered fairly recently, pretty good for a 35 year old game)
Of note UnReal World has nothing to do with Epic, and is in fact OLDER than Unreal, URW was first published in 1992, and has maintained active development with a handful of updates per year.