This is the demo version of Draxel. The demo restricts access to other areas, saving and loading, the player's level exceeding 10, and access to quests.
Use the WASD keys to move, space bar to attack/scroll through the chat, escape to access your backpack, and T to talk to people.
Please note that this is a Windows game and is optimized as such. Because it is in the web browser, the game is likely to lag far more than normal, and some minor bugs are likely to occur. If you are having trouble with the lag, disabling shadows and or particles may help (although the options are a little broken at the moment).