I search fun free games for PC whose category any% is less than 15 minute c:

cool 15m. game free 15m. game

choose one

Fortnites free, just have to kill 100 people in your 15 minute time frame. Good Luck

There is the Sling series, that's pretty decent.

Some ideas:

https://www.speedrun.com/shift https://www.speedrun.com/robot_wants https://www.speedrun.com/Tag_The_Power_of_Paint

You can go farrr, with an emulatarrr

The fun part depends on what you like. I had fun with a lots of horrible games even though it wouldn't be normal for 95% of humanity to have fun with these games

https://www.speedrun.com/Stick_RPG_2#Any

best flash game ever maid, go ahead and get into it