Action games
If you don't play games that much, there is a big chance you have played an action game, e.g. a shooter, at some point. This category is full of games that won't let you get bored.
DOOM 3: Resurrection of Evil
UberStrike
Delicious - Emily's Tea Garden
Street Karate
KARATE MASTER Knock Down Blow
Orbital Destruction
Starscape
Half-Life 2: CTF
Starship Troopers
Starlight Walk
Far Cry Delta Sector
Heroes Of Yggdrasil
Batman Forever
Marvel (TM) - Ultimate Alliance
Tom Clancy's Rainbow Six Vegas
Jade Empire
Clash'N Slash
Barrel Mania
Fatal Fury
Deathand Returnof Superman The
Otto's Magic Blocks
Battle for Troy
Battle Showfield
Return of Warrior
Half-Life Uplink
El Matador
Last Action Hero
Counter Strike Playtex
LUXOR 2
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.