Diablo

Diablo is an action role-playing video game developed by Blizzard North and released by Blizzard Entertainment in January 1997. It is the first installment in the video game series of the same name.

The game is set in the fictional Kingdom of Khanduras in the mortal realm. The player controls a lone hero battling to rid the world of Diablo, the Lord of Terror.

The gameplay involves the player moving and interacting with the environment primarily by way of a mouse. Other actions, such as casting a spell, are performed in response to keyboard inputs. The player can acquire items, learn spells, defeat enemies, and interact with non-player characters (NPCs) throughout the game.

The dungeon levels are procedurally generated with themes for each level; for instance, the catacombs tend to have long corridors and closed rooms, while the caves are more non-linear. The players are assigned a random number of quests from several tiers; these quests are optional but usually offer powerful unique items as rewards and help to level up the character and/or reveal more of the backstory. The final two quests are mandatory in order to finish the game.