Pressure
Well made doors-like game where you traverse rooms, hide from monsters, and play minigames.
Why
Egoistic devs who will pat themselves on the back for patching an exploit they couldn't have found without a white-hatter's help. Co-Owner (Zerum) is obessed over a character thats not theirs and will kick/ban people who "self ship"
Phantom Forces
A IK movement based FPS game with customisation in mind. Game used to be the most played game in roblox, but goes to show that even radiation, things will decay over time.
Thunder Science
All I can say about it is that its a change furry roleplay game
Why
Too much to explain. Theres a neat youtube video that only scratches the surface.