Northwest Synergistic Software is a contract software developer and a former video game developer. Founded in 1978 under the name Synergistic Software, the company published some of the earliest available games and applications for the Apple II family of computers. They continued developing games for various platforms into the late 1990s.

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Bullfire v0.20

Bullfire v0.20

Diablo Hellfire Prefab

Multiplayer Only. - New monsters - New bosses* - New speech in MP quests - New prefixes/suffixes - New/changed unique items - Nest change completely to...

Hellforge

Hellforge

Diablo Hellfire Prefab 2 comments

has 5 or 6 original quests! Some without sound, some with sound. You will come across a Soulstone, arcoss Leoric’s Sepulchre where you’ll find the...

Purgatory v0.4

Purgatory v0.4

Diablo Hellfire Prefab 1 comment

Version 0.40 of this Diabolic Hellfire Mod. Requires Hellfire Ver. 1.01 to be installed.

Icestorm v2

Icestorm v2

Diablo Hellfire Prefab

New base item types have been added (some with special effects). Some existing base item types have been improved to increase their appeal. New prefixes...

Chaos Mod

Chaos Mod

Diablo Hellfire Prefab

This mod changes all of the basic monsters' stats and some of the bosses'. Almost every unique item has been changed. Character stats and experience have...

Fantasy

Fantasy

Diablo Hellfire Prefab

Here's a list of them: - Random monster generation on level 16 (actually this was in last time as well) - The spell "Warp" will now take you to the stair...

Bossfire

Bossfire

Diablo Hellfire Prefab

This mod increases the challenge considerably, particularly bosses. The recommended path is church/catacombs/hive/caves/crypt/hell, description for full...

Varaya & Khan's Hellfire Mod v3

Varaya & Khan's Hellfire Mod v3

Diablo Hellfire Prefab 1 comment

Fixes bugs, many general improvements like fast walk in town in Multiplayer, nearly all monsters in caves and lower have bosses, added alot of new town...

Hellfire: The Dark v5.4

Hellfire: The Dark v5.4

Diablo Hellfire Prefab 1 comment

This Hellfire modification has been started in November 1998. It is based upon the famous HFMOD V2 from Varaya and Khan, dated September 2 1998. The reasons...

Doomfire v1.07

Doomfire v1.07

Diablo Hellfire Prefab

It's quite a bit tougher than Hellfire. It does not support Multi Player (Sorry but neither did “Hellfire”, EVER). I didn't want it to anyway as not...