I know I haven't been on these forums in a long... very very long time, but I have news about GARRY'S MOD!
https://santosrp.com/forums/index.php?/home/This website hosts servers that completely transform the very nature of Garry's Mod into a GTA style RP. It looks pretty cool, I just joined but you have to apply to get in because some youtuber (SpiersTheAmazingHD) popularized it and while it's "hard" to get into, it's completely worth doing. There are jobs, an economy system, houses, etc. I'll be on it all summer in my free time and I hope some of you look into this as well.
Also, does Gumby still frequent these forums? Haven't spoken to him in a long time.