Top 100 grid-based first-person dungeon crawlers
The games on this list are only a selection of the games listed on this site. If you can't find your favorite game on Top 100 then look for it in the games section or simply search for it. If you still can't find it then you can submit it and I will add it.
3

Dungeon Master isn't just a game, it's a religion. Even though the game was made in 1987 for the Atari ST (and a PC port was made two years later) the fanbase is quite big today.
4

Clouds of Xeen is the fourth installment in the Might and Magic series, and a follow-up to
Isles of Terra.
5

Eye of the Beholder is a dungeon crawler RPG with a first-person perspective based on the 2nd Edition AD&D rules.
6

Darkside of Xeen is the fifth installment of the Might and Magic, a direct sequel to
Clouds of Xeen, and a completion of the overarching story arc that started in the
first game.
7

Pool of Radiance is the first adaptation of TSR's Advanced Dungeons & Dragons (AD&D or D&D) fantasy role-playing game for home computers.
8

Thief of Fate is the third installment in the Bard's Tale series, and a sequel to
The Destiny Knight. It is similar to its predecessors, being a first-person fantasy role-playing game in which the player explores maze-like pseudo-3D towns, dungeons, and wilderness areas.
9

Eye of the Beholder II: The Legend of Darkmoon is, like its
predecessor, a first-person dungeon-crawling role-playing game based on the second edition of AD&D rules.
10

The Secret of the Inner Sanctum is a role-playing game and the first installment in the Might and Magic series. Core gameplay concept is similar to that of Wizardry games, though the game does not focus solely on dungeon crawling and features overworld areas and towns that can be physically navigated.