Lode Runner is a 2D puzzle action platforming game. The player moves the character around single-screen stages collecting loot and trying to escape while being pursued by enemies!
Lode Runner is a really important videogame as it was the first to include a level editor. This allowed players to create their own stages!
So, more than 30 years before the release of Super Mario Maker, Lode Runner let players try their hand at game design.