Charm and love put into the game. Something genuine and fresh with what it aims to do. Doesn't have to equate to being a good game overall but generally that's what happens.
Games with soul have little touches in places you don't find in every game. Thought and care are placed into the development, sometimes there are Easter eggs to find just because the dev wants you to explore everything.
>>3811045Soul can absolutely be defined, you just need to know how to articulate yourself anon.