Sega's catalogue of games is on sale this weekend over at Steam with up to 75 percent off some of its most popular titles.

The sale runs through to March 30.

Nearly all of the Total War, Company of Heroes and Dawn of War back catalogs are discounted 75 percent.

Alien Isolation is also discounted by 75 percent.

Finally, there's a Sega Super Bundle for NZ$99 that includes:

Alex Kidd in the Enchanted Castle
Alien Soldier
Alien Storm
Aliens vs. Predator
Aliens: Colonial Marines
Alpha Protocol
Altered Beast
Binary Domain
Bio-Hazard Battle
Bonanza Bros.
Company of Heroes 2 – The Western Front Armies: US Forces
Columns 3
Comix Zone
Company of Heroes
Company of Heroes 2
Company of Heroes 2 – Ardennes Assault
Company of Heroes: Opposing Fronts
Company of Heroes: Tales of Valor
Condemned: Criminal Origins
Crack Down
Crazy Taxi
Decap Attack
Dr. Robotnik’s Mean Bean Machine
Dynamite Headdy
Ecco the Dolphin
Ecco Jr.
Ecco: The Tides of Time
Empire: Total War
ESWAT: City Under Siege
Eternal Champions
Fatal Labyrinth
Football Manager 2015
Gain Ground
Galaxy Force 2
Golden Axe 3
Golden Axe
Golden Axe 2
Gunstar Heroes
Hell Yeah! Wrath of the Dead Rabbit
Kid Chameleon
Landstalker: The Treasures of King Nole
Light Crusader
Medieval 2: Total War
Napoleon: Total War
NiGHTS Into Dreams
Phantasy Star 2
Phantasy Star 3: Generations of Doom
Phantasy Star 4: The End of the Millennium
Renegade Ops
SEGA Bass Fishing
Shadow Dancer
Shining Force
Shining Force 2
Shining in the Darkness
Shinobi 3: Return of the Ninja Master
Sonic 3 and Knuckles
Sonic 3D Blast
Sonic Adventure 2
Sonic Adventure DX
Sonic CD
Sonic Generations
Sonic Spinball
Sonic the Hedgehog 4 – Episode I
Sonic the Hedgehog 4 – Episode 2
Space Channel 5: Part 2
Space Harrier 2
Space Siege
Super Thunder Blade
Sword of Vermilion
The Club
The Typing of The Dead: Overkill
ToeJam & Earl
ToeJam & Earl in Panic on Funkotron
Total War Battles: SHOGUN
Total War: SHOGUN 2
Total War: Shogun 2 – Fall of the Samurai
Total War: ROME 2 – Emperor Edition
Valkyria Chronicles
Vectorman 2
Viking: Battle for Asgard
Virtua Fighter 2
Warhammer 40,000: Dawn of War 2: Retribution
Warhammer 40,000: Kill Team
Warhammer 40,000: Space Marine
Warhammer 40,000: Dawn of War – Dark Crusade
Warhammer 40,000: Dawn of War – Game of the Year Edition
Warhammer 40,000: Dawn of War – Soulstorm
Warhammer 40,000: Dawn of War 2 – Chaos Rising
Warhammer 40,000: Dawn of War – Winter Assault
Warhammer 40,000: Dawn of War 2
Wonder Boy 3: Monster Lair