Iv'e been on the blox quite a while and throughout my time ive seen some pretty cool games that've been made. Here is a list of a few that I highly recommend based on genre.
Shooters
Phantom Forces.
phantom forces is a really cool shooter game I used to play a lot in 5th to 6th grade with friends. It's mechanics are spot on and have no major bugs other than the occasional hacker, but that isn't much of a problem because they have a kick player system. I play this now when I'm bored or when friends wanna get back into it for the one time solid 9/10.
No-Scope Sniping.
No scope sniping as the name implies is a shooter game where you can't scope in, and the only gun provided is a sniper! Pretty solid game I played it with some friends and they enjoyed it solid 8/10.
Recoil.
I only played this game like 2 times, but it was pretty cool when I played. The first time I played people were still new and the difficulty was very much baby mode. After a long break I went on again and people evolved and there's a little bit more comp on the game. Its overall pretty fluid and really realistic using artho parts for the models. sadly I prefer r6 better so I wouldn't rank it higher than phantom forces, still a cool game tho. 7.7/10
Sports
Rb World 2
RB world is literally the best chain for basketball roblox games, the framework is near perfect (declined since peak) and the overall vibes are the greatest. This game has brought me so many good memories and is overall 9/10.
Boxing League
Boxing League as the title implies is a boxing game on the blox. I saw it on tiktok and played it couple times and found it fun for the most part. I didn't get too into it because it was sort of confusing but I really like the models they created for the game as well as the guis and effects placed inside. solid 7.5/10
Notable Mentions
Zo
Zo is another pvp place but in a more pre-classical japanese setting. The weapons provided are all japanese war style weapons and are scripted very well.
Criminality
Criminality is a GTA type game where youre placed into a city setting and you're able to collect cash and kill other players. Its a pretty cool pvp place to play with friends. I personally never played it because I'm not willing to spend the robux, but I hear its really good.
The mimic
The mimic is a horror game on roblox that is lowkey genuinely scary. There aren't many horror games on the blox that can top it due to its story line and models used. Would highly recommend playing with a group of friends over a call for good scares and laughs.