Young Thugmust've been a huge fan of the "SimCity" video game series as a kid ... 'cause the tiny town he envisions building feels like an awesome mini metropolis.
So, here's the deal ... the rapper turned 30 earlier this month and among the fancy gifts that came his way were 100 acres in the greater Atlanta area ... gifted to him by his manager, Geoff Ogunlesi.
Atlanta realtor, Trey Williams, helped Geoff lock down the land deal and the plan's for Young Thug to subdivide the property with the name, "Slime City." Trey tells TMZ ... YT wants to build really nice homes, a waterpark, perhaps a camping site and so much more.
Young Thug wants to host his annual "Slime Fest" on the property. Hence ... "Slime City." YT has hosted "Slime Fest" every year -- sans 2020 for obvious reasons.
Trey says Young Thug will include a dirt bike trail on the property ... where people who love riding bikes and 4-wheelers can cut loose.
Trey says Young Thug's already been chopping it up with architects and engineers. There are a few permits they're waiting on ... but as soon as they get the green light, it's game on.
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We're told this is just one way Young Thug wants to give back to his community. Just recently the rapper bought his mom a new home in the ATL ... and he plans to do the same for his dad. As for how much YT dropped for the property ... Trey wouldn't say.
Trey also wouldn't spill the beans on how YT is going to fund "Slime City." In any event ... sounds like Young Thug's not messing around when it comes to seeing it all come to fruition.