WARNING: Addictive games alert, if you want to stay productive, do not click on any of these links. :P
I like Picnic Defender and Z-Type, what about you?
Pacman, from different perspective.
A tower defence game. As a tower defence lover, this game can be quite addictive.
I guess everyone plays pong. How about Pong in 3 Dimensions?
Role Playing Game
This mini-game was created with the framework RPG JS and the editor RPG Maker XP (for maps). The goal is to save the daughter of the mayor of the village. Move with the arrow keys, make an action by pressing "Space" (talk, push ...) and the A button to attack (when you have the sword)
I quite like this game. You have to use your mouse to lasso glowing points of light before they explode.
Guess What Cup!
Really impressive 3D animation. Tankworld is a tank shooter, you can use a wide range of weapons to fight your opponents. In some levels you can find a helicopter the explore the world.
Warning, another addictive game. But I think it's quite easy to beat and long lasting game. Should have use random strings instead of words. A Space Shoot'em'Up where you type to shoot.
In this web game, your goal is to get as much sand as you can out of the box and into the pail. I think this game can easily makes some money if it's developed to iOS platform.
Alex The Aligator
A WIP HTML5 remake of the classic "Alex the allegator 4" game, created by Johan Peitz from free lunch design. Alex 4 WE, includes the first 6 levels of the original game, and has been developed using the melonJS library, a free HTML5 game engine. Honestly, I haven't played this game before, it reminds me of Gameboy era kind of game.