^^ what type of game is this ?
Old school Dungeon crawler RPG. Here's a little intro from GOG:-
Legend of Grimrock sports tile-based movement combined with real-time combat. You control a party of four prisoners, either using the pre-made adventurers or by carefully creating your own desperate crew. You have only three classes: fighter, rogue, and mage, but the addition of minotaurs or insectoids races mixes things up a little and assures future replay value. Then the crawling and hacking begins--and that’s what’s most important about an action RPG. The fights are tough and require planning and some evasive movements, but the learning curve allows you to adjust to the grid-based waltz of step forward--attack--step backward--magic--step left--avoid in a minuet of death. The combination of atmospheric sounds (wind, whispers, and monster growls somewhere), some clever and demanding puzzles, amazing monster design (killer snails!), and impressive detail poured into Grimrock dungeons make the game one of the finest dungeon crawls ever made.
So far the experience is very very satisfying. You won't get free, mouse-based movement like bigger titles, but I can assure you the gameplay is really good.