Warhammer 40,000: Dawn of War: Soulstorm Steam

Warhammer® 40,000™: Dawn of War® – Soulstorm™ is the third and
final expansion to the genre-defining and critically-acclaimed RTS,
Dawn of War. In Soulstorm, two new armies are introduced, raising
the total number of playable armies in Dawn of War to an
unprecedented count of nine while also adding additional units to
all existing factions. The revolutionary meta-game that was
introduced in Dark Crusade is further expanded to an interplanetary
scale, allowing players to battle across a star system. Combined
with its sister products, Soulstorm makes Dawn of War the largest
and most detailed RTS ever released.

• Two New Armies – Two new armies open up a world of strategic
  and story possibilities. Raising the total number of available
  armies in Dawn of War to nine, these two new factions fight with a
  new resource derived from the souls of the faithful and the
  fallen.
• Sisters of Battle – The Chamber Militant of the Emperor’s Holy
  Inquisition. Limited in numbers but incredibly powerful, the
  Sisters of Battle are second only to the Space Marines in terms of
  sheer fighting prowess. Ranging from the Sisters Repentia with
  their devastating ceremonial eviscerators to the awe-inspiring
  Penitent Engine, the Sisters of Battle are truly a power to be
  feared.
• Dark Eldar – Twisted and corrupt cousins of the Eldar, these
  terrifying raiders from the furthest reaches of the Webway are
  feared and hated by all. Their incredible speed and reliance on
  close quarter combat, stunning and poisoning abilities allows them
  to quickly strike an enemy and be gone before reinforcements can
  arrive.
• New Air Units – Strategic warfare in the 41st Millennium gains
  a whole new dimension as each army gains new air units to rain
  death from the skies.
• Brutal Domination – Wage war across an entire solar system as
  the metagame map introduced in Dark Crusade is expanded to an
  interplanetary scale. Liberate, enslave, or destroy entire worlds
  as you unleash your armies fury across the galaxy. Players will now
  strive to conquer an entire solar system with multiple planets and
  moons to be conquered — in total 34 maps are available to the
  player (25 for DC).
• Enhanced Customization – Customize your hero’s weapons, items
  and abilities as he grows in power and personalize your army’s
  insignias, colors, banners and names. Earn and unlock achievements
  and medals as you prove your superiority online.

System requirements