Treasure
5 games
Description
Treasure is a reliable motivator because it gives an ordinary puzzle a reason to exist. You're not solving it for the sake of solving it - there's something at the end.
Bob The Robber 5 Temple Adventure is the stealthy version, working through a temple that would rather you didn't. Loot Island - Treasure Digger is the straightforward one where digging is the method, and Treasure Hunt Puzzle makes finding it a proper problem. Solitaire Klondike - Treasure Island uses the theme over a card game, and Lost Treasure Slots leaves it entirely to chance.
There are 5 free games under this tag, all playable in the browser with nothing to install, and the theme is doing more work than the mechanics in several of them.
The exploring end is in Adventure games, and Puzzle games covers the ones you have to think your way through.