
Perimeter: Emperor's Testament
The game expands the story of the original Perimeter in a vast singleplayer campaign.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Multipacks (1)
About Perimeter: Emperor's Testament
But the end of the hard tests is not in sight, and finally due to the despotism of Spirits and the underground intrigues Exodus went to pieces. New factions have arisen - the Empire and the Harkback. Each faction had their own goals and philosophy. The Harkbacks believed that the old Earth has not died, and the Empire - the most mysterious faction - believed that humans should stay in the Chain of Worlds. The antagonism boiled into a war that has been going on for many decades in many worlds.
Whereas the Spirits are on the way to their destination and the Harkbacks are seeking the mythical Earth, the Emperor builds up his Sponge Empire using automatic bases - his Vice Frames. He does not believe in the old or in the new Earth.
Secretly the Emperor creates the Mechanical Spirit - a super mechanism to help him discover new Worlds. Only the Emperor's mortal foes the Spirits could discover new worlds, and that was the source of their power. But now the new time has come.
One of the Vice frames starts testing this mechanism, it leads to the appearance of a super mind - Mechanical Messiah and the discovery of the parallel Chain of the Psycho-sphere Worlds. We also meet the "lost" Exodus Frames and find traces of the mysterious alien race. The three sides are in the middle of the deadly battle: the Scourge against the Emperor's Slaves, Lash of the Spirits against the Calling of Messiah, a dead truth against a newborn lie.
Who are the Spirits - savers or killers of the human race? Who is Messiah judge or a puppet? Who is the Emperor? Who will win? The player will find out the answer during the spectacular single player campaign in Perimeter: Emperor's Testament.
"I feel hungry tension of the highest spheres. Flesh and blood of the Sponge have been set in motion; they are pulsating around the world in which the Emperor is creating a new history of the great Chain."
- Fast paced Real-Time-Strategy action
- Construct or destroy the very gameworld environments themselves using terraforming
- Vast singleplayer campaign expanding the story of the original Perimeter
- New special units, buildings and soundtrack
- Perimeter: Emperor's Testament is affected by the GameSpy shutdown on the 31st of May. You can continue to play the game through LAN, DirectIP and GameRanger.
Game details
Game details
Age ratings
Game modes
Features
Perimeter: Emperor's Testament price history
Lowest tracked price: £0.43 (Jul 9, 2026) · current best: £0.44 across 7 stores.
Perimeter: Emperor's Testament player count & reviews
65% positive reviews all-time · 2 peak players in the last 30 days.
Perimeter: Emperor's Testament — frequently asked questions
Where can I buy Perimeter: Emperor's Testament at the cheapest price?
Right now the cheapest offer for Perimeter: Emperor's Testament is £0.44 at Eneba. KingsPrice compares 7 offers from 7 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Perimeter: Emperor's Testament has ever been?
The lowest price KingsPrice has tracked for Perimeter: Emperor's Testament is £0.43 (recorded on Jul 9, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Perimeter: Emperor's Testament?
Perimeter: Emperor's Testament peaked at 2 concurrent players on Steam in the last 30 days (highest on Jul 18, 2026). The player chart on this page updates daily.
Is it safe to buy a Perimeter: Emperor's Testament Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Perimeter: Emperor's Testament at a discount?
Create a free price alert on this page and KingsPrice will email you when Perimeter: Emperor's Testament drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *: Windows XP/7/8
- Processor: Intel Pentium 4+ or AMD Athlon XP 2GHz and faster
- Memory: 1 GB RAM
- Graphics: nVidia or AMD video card with 128Mb VRAM or more
- DirectX: Version 9.0c
- Storage: 4 GB available space
- Additional Notes: Online play no longer supported, LAN play is possible













