The Neverending Quest
I have finished my submission with 3 hours to spare!I decided to call the game "The Neverending Quest" since you are a knight with a quest to get to the end, which doesn't exist since the world is infinite.
The game is a platformer with randomly generated levels. With enemies which you can fight, NPC's which give you quests, and various powerups the game is very fun to play!
To get to the end of the level you must find the castle and go inside of it. There can be 1 or 2 castles around the map so good luck finding it!