I have been playing dCity since the beginning when it didn't even have a website and was only running in Discord and it's been a steady stream of income since then.
As a gamified investment strategy it is second to none and it even inspired me to create Rising Star although I have concentrated on making it first and foremost a game and the fact that you can earn a little crypto is a bonus.
I am now at the point where I earn enough SIM to buy new cards every day and also take a little profit. You can't beat that!