Everyone saw the Queen of England jump out of a helicopter to open the 2012 Olympics. Royalty are awesome. But her eventual successor will be chosen simply by birth order, whereas in Lancelost, a retro platform game by Stefan Langeder, the king has decided that whichever of his sons has the biggest lance will take the throne.
As it happens, you have the biggest lance. But your evil brother, jealous of the size of your weapon, has hidden it somewhere in a castle full of bottomless pits, spikes, wizards and other assorted goodies and traps. Make your way to the exit on each level using the [arrow] keys to move and jump, collecting coins as you go. Along the way, press [Down] to interact with wizards to be granted essential temporary powers including super speed and flight.
Lancelost spans 40 levels but the pace of the puzzles and gameplay mean it never drags. Levels are short, and generous with checkpoints, and new mechanics are regularly added to the mix. The result is a fine puzzle platformer, and if you complete it, an entire country to rule. Although I'd recommend moving to a less dangerous castle.