Surprised this isn't at the top, alongside Mindustry. 0 A.D. is like a free Age of Empires and is lovely to play! I'd probably also put Luanti up there, and m

Surprised this isn't at the top, alongside Mindustry. 0 A.D. is like a free Age of Empires and is lovely to play! I'd probably also put Luanti up there, and maybe OpenTTD (despite the niche UI).