Shadow Tracks
Word of advice: don't click strange links on the internet. However, there isn't a way to run an .exe file without download, so if you'd like to try the game, go ahead and download it.
*You need Java on your computer
Rules: This is a spin on your average top-down shooter- where you can't see your enemies. Right click for your main cannon (which will overheat, so watch its color). Left click for an explosive shell, which has a reload time. Most importantly, press space for radar, which will temporarily let you see some of your enemies. Also, the giant red blocks are temporary defenses meant to let a player get used to the speed of the game.
File Download: Tank.exe
Source Code: github