Released in 1997 for the PC (and later the original PlayStation), Diablo is a dark, gothic-fantasy game blending RPG and elements from Arcade games, such as the original Gauntlet, to create a modern style of action-RPG where the player was often tangling with huge numbers of enemies at once.

The original game was known for endless mouse-clicking “hack and slash” action in a single dungeon consisting of 16 levels. The dungeon is located under the town of Tristram, a sparsely populated town that consists of 6 NPCs who serve primarily as shop keepers to buy and sell adventuring equipment to the PCs and give out the occasional quest. Critics of the game will point to this lack of interaction within the game and the focus on mouse-clicking, killing things and taking their stuff as weaknesses in the game, while fans of the game will point to these same elements as the core of the gameplay’s lasting appeal. Owners of the game could create a “spawn” version for their friends to use. The spawned version was mostly an extensive demo.

Diablo was both popular and influential, spawning a number of sequels and spin-offs, including Diablo: Hellfire, a licensed add-on to the original game produced by Sierra Entertainment rather than the original development team of Blizzard North.

Finally, the game spawned three direct sequels: Diablo II, Diablo III and Diablo IV.


Diablo has three character classes available for play, each with their very own character attributes, traits and specializations:

  • Rogue — These master archers have a slight level of magic but are not nearly as adept as that of the Sorcerer. Their focus is ranged physical damage.
  • Sorcerer — This ultimate master of the magic arts is trained to use pure magic to smite foes rather than direct melee combat.
  • Warrior — The pure melee combat warrior, he is the master of weaponry and defense.
The Sorcerer Master of magic arts
The Sorcerer Master of magic arts

Despite the class-based system, character development is very free-form and is left largely up to the player. There are only a few elements directly tied to character class: each class has a skill available at 1st level that improves as the character gained levels; the character’s class determines their starting and maximum attributes; the character’s class determines how many hit points and magic points are gained with each level increase; finally, a character’s class determines their starting equipment. Of these, the two that had the strongest effect on gameplay were the starting and maximum attributed and the advancement of hit points and magic points upon gaining a level.

The Silent Rogue
The Silent Rogue
The Powerful Lone Warrior
The Powerful Lone Warrior

Attributes in Diablo are the primary limitation on a character’s abilities. A high Strength score allows a character to wear heavy armor and melee weapons, a high Dexterity allows a character to use devastating ranged weapons and high magic allows the character to learn high-level spells. Thus the Rogue class begins the game with the highest Dexterity, the Sorcerer with the highest Magic, and the Warrior with the highest Strength. These classes can also achieve a much higher maximum attribute in these areas, allowing them to attain the most powerful weapons suited to their character class.

Still, a Warrior could concentrate on Magic and become reasonably proficient in its use, a Sorcerer could work on Strength to wear heavy armor and so forth, allowing a player a great degree of flexibility in tailoring their character to their preferred play-style. This was one of the many game elements that increased re-playability.

Quest Monsters

The Butcher Emerging From his Lair
The Butcher Emerging From his Lair
  • The Butcher: A Demon killing the townspeople of Tristram. First (optional) boss.
  • King Leoric: The former king of the land. Corrupted and twisted by Diablo. Now he wanders as a giant skeleton with a crown on his head.
  • Gharbad the Weak: Offers the adventurer a magical item for mercy, then deems them unworthy.
  • Snotspill: a Kobold that stole Ogden’s sign.
  • Zhar the Mad: Crazed sorcerer who gives the adventurer a spellbook.
  • Warrior of Blood: Steel Lord who guards the entrance to the 14th level.
  • Lachdanan: Blood Knight who seeks retribution which can be obtained by giving him the golden elixir.
  • Archbishop Lazarus: a Priest who performed the ritual to tie the Lord of Terror to Leoric’s son.
  • Diablo The Lord of Terror: Demon who possessed the prince of the land. The main antagonist of the franchise.

Magic Items

Diablo also features an extremely diverse array of magical equipment, with magic items being powered by a prefix and suffix. Since the power of each prefix and suffix is variable and they could be found in any combination, this led to a stunning variety in type and power of equipment. There are also extremely rare unique items that had individual names, a unique appearance and abilities that were not found in normal items.

Since these items are generated randomly as they are dropped in the game, a player is never sure what item could be in the next chest or held by the next monster. Indeed, a player could continue to play the same character, moving to a higher difficulty level with the same character, where the monsters would be more powerful but would drop items of increasing rarity.


Spells are used to cast magic which is important due to how frequently they are used throughout the game. They are not character dependent and are often found in spellbooks, staves and scrolls. Each class has its own unique spell as well.

Name Effect
Apocalypse All enemies in the area can be damaged.
Blood Star Fires a star at a target whilst it is slow, its mana consumption is low too.
Blood Spirit Summons a spirit that homes in on a target, a very strong spell.
Chain Lightning Similar to Lightning but creates more than one bolt and homes in on the monsters.
Charged Bolt Launches several bolts on the ground, perfect for crowd control.
Disarm Trap Rogue’s skill, grants the ability to see traps and disarm them.
Elemental A fire elemental in the form of a person runs forward and aims towards the nearest monster which deals splash damage.
Fireball Stronger version of fireball which creates a bigger ball of fire than firebolt and deals extra damage.
Firebolt Launches a single small ball of fire at the enemy.
Fire Wall Creates a wall of fire which damages enemies in a line.
Flame Wave Fires a flame attack in the form of a wave capable of damaging multiple enemies.
Flash Radius attack that first attacks the player in front and sides and even attacks behind the player.
Golem Summons a golem used for attacking enemies.
Guardian Summons a Hydra that shoots firebolts at enemies nearby. Perfect for detecting enemies.
Healing Grants the player health.
Heal Other Used in multiplayer, it grants health to other players.
Holy Bolt Fires a bolt as holy damage, perfect for undead monsters and Diablo.
Identify Used to identify items while in the field. Items can also be identified back in town by an NPC.
Inferno Fires a flame for a short distance.
Infravision Grants the ability to see through walls and detect enemies.
Item Repair Give the ability to repair item but also decreases the maximum durability (Warrior’s Skill).
Lightning Shoots a Lightning bolt at the player’s direction.
Mana Shield Upon casting this spell, all damage is taken from mana as opposed to health.
Nova Creates a ring of lightning that damages enemies within a radius.
Phasing Faster version of teleporting but it randomly moves the player on the map.
Recharge Staves Sorcerer’s skill, gives the ability to recharge staves but reduces the maximum charges every time it’s used.
Resurrect Used in multiplayer to bring back a dead player.
Stone Curse Destroys the enemies defense upon casting.
Telekinesis Used to interact with certain objects from a distance like opening a chest or pulling a lever.
Teleport Can teleport around the area, perfect for evading battles.
Town Portal Creates a portal to go back to town.


A distinct component of Diablo is that its dungeon maps were randomly generated every time a player started a new game. Because of this, it was impossible for a player to have an advantage in a second or third game by remembering where quest objectives were. This required each new game’s dungeon to be mapped anew (which the game assisted with through an auto-map feature), meaning the player never knew where critical quest objectives or opponents could be found.

In addition to the level randomization, many other aspects of Diablo’s gameplay could change from game to game:

  • Monsters on each level of the dungeon would vary, meaning a player might face entirely different opponents, requiring different tactics and abilities to succeed.
  • As mentioned above, the way magic items were generated meant that a player was unlikely to see the same item twice over the course of multiple games not every quest was available in every game, meaning different tasks and rewards for each instance of the world.
  • The quests in Diablo were also handed out randomly by the NPCs throughout the town. Usually, all quests could not be completed in one playthrough.


The PlayStation North American Box Art
The PlayStation North American Box Art

In March 1998, Electronic Arts released Diablo for the PlayStation. The PlayStation version lacked the key component of being able to go online. The workaround was to allow two players the ability to play on the same screen at the same time, something the PC version lacked. However, save games for Diablo were very large; a single save game could take as many 10 blocks on a PlayStation memory card.


A final element of the game that increased its longevity was the free multiplayer component, available through Blizzard’s Battle.net servers.

As a multi-player game, Diablo’s gameplay changed radically and resembled what we today would recognize as a Multiplayer Online RPG or MORPG. In fact, Diablo and Ultima Online could be seen as the two games that most strongly influenced the most popular online games of all time, Everquest and Blizzard’s own World of Warcraft.

In multi-player, players could team up and the number of players in the dungeon made creatures more powerful. Item drops were also increased based on the size of the player party. Many elements of the modern MMORPG were introduced into this environment, such as player to player economies, where rare items were bartered or bought with enormous sums of gold.

Another unfortunate element of MMOs was introduced here, with players cheating to gain a competitive advantage over other players, or to get the rarest of the rare items. Blizzard’s experience running Battle.net and managing both the economy as intended but also cheating was to prove invaluable in their development of World of Warcraft.


Diablo inspired a host of imitators who sought to recapture its addictive, simple gameplay. The most important of these are probably Baldur’s Gate: Dark Alliance and its sequel on the PS2. Other games to follow Diablo in the Action RPG genre on consoles include Champions of Norrath and its sequel Champions: Return to Arms, which were Action RPGs set in Norrath, the world of the popular MMO EverQuest.

The action RPG was adapted to other non-fantasy themes and settings as well. These include the super-heroic X-Men Legends, X-Men Legends II and especially Marvel Ultimate Alliance all three of which are set in the Marvel Comics universe.

The Fallout RPG series tried their own version of a Diablo-style action-RPG with the Brotherhood of Steel game for the PS2.

The action RPG has also returned to its PC roots with games such as Titan Quest, Fate & Torchlight, a modern attempt to recapture the magic of Diablo on the PCs.

Critical Reception

Diablo was widely praised by critics, with a Metacritic average of 94. Many critics gave the game perfect or near-perfect scores. Notably, Computer Gaming World, an influential game review magazine for PC games gave the game a perfect score of 100.

Game review site Gamespot gave the game a 9.6 which makes it one of the highest-rated computer games in the history of the site.


Cover Art
Cover Art

The soundtrack for Diablo was composed by Matt Uelmen.

Track No. Song Title Running Time
01 Intro 01.34
02 Into Town 04.49
03 Dungeon 04.25
04 Catacombs 05.51
05 Caves 04.59
06 Hell 04.15
07 The Nest 04.00
08 The Crypt 02.35

System Requirements


  • Windows 95 or better
  • 60 MHz Pentium or better
  • 8 MB RAM (16 MB for multiplayer)
  • SVGA compatible graphics card (640 x 480 maximum)
  • 2X CD-ROM drive


  • Power Macintosh or compatible (Diablo is not compatible with Mac OS X Lion)
  • 8 MB RAM with virtual memory
  • System 7.5 or higher
  • 2X CD-ROM drive

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