Imperium
Petroff Games · released Nov 2, 2026
Imperium is a single-player 4X space strategy game. Colonize alien worlds, design your own spaceships, research exotic technologies, and outmaneuver rival empires through diplomacy or open war. Build a galactic empire and rule it your way.
Price
-10%$22.49
$24.99
Reviews
72%
55 · Mostly Positive
Playing now
22
sampled 22h ago
24h peak
22
all-time seen 29
Followers
2,639
9h ago
Owners (est.)
~1.7K
825 – 2.6K
YouTube activity
2
videos · 30 d12
creators23.6K
views · 1 yTwitch activity
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avg viewers · 30 d—
hours watched · 30 d—
streamers · 30 dProduct info
from Steam's PICS · read 43m ago- Change number
- 40,942,154 · seen 43m ago
- Public build
- 26,614,399 · Nov 12, 2026 (1d ago)
- Operating systems
- windows, macos, linux
- Architecture
- —
- Install size
- 13 GB · 6.7 GB download
- Install folder
Imperium- Controller support
- —
- Metacritic
- —
- Homepage
- petroffltd.com/imperium
- Release state
- released
- Community
- hub · Workshop
Steam Deck
UnknownNo Deck test results published.
Branches · 1
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 26,614,399 | Nov 12, 2026 · 1d ago |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 26,614,399 | public | Nov 12, 2026 11:27 | 1d ago |
| 26,488,650 | public | Nov 6, 2026 16:54 | 4d ago |
Depots · 3
content of the public branchLaunch options · 6
| Executable | OS | Description |
|---|---|---|
Imperium.exe |
windows | Play Imperium |
Imperium.app |
macos | Play Imperium |
Imperium.x86_64 |
linux | Play Imperium |
Imperium.x86_64--rendering-driver opengl3 |
linux | in compatibility mode (older Intel graphics) |
Imperium.exe--rendering-driver d3d12 |
windows | with DirectX 12 (try this if the game crashes or flickers) |
Imperium.exe--rendering-driver opengl3 |
windows | in compatibility mode (older graphics cards) |
Languages · 5
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | ✓ | — | — |
| Russian | ✓ | — | — |
| Japanese | ✓ | — | — |
| Simplified Chinese | ✓ | — | — |
| Portuguese - Brazil | ✓ | — | — |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 1670311 | Imperium | Store or CD key | -10%$22.49 |
Bundles · 1
all bundles| Bundle | Games | Bundle discount | Price |
|---|---|---|---|
| Imperium & Astro Protocol | 2 | -10% | $32.83 |
Change numbers
all changes#40,942,154 · 43m ago#40,934,859 · 7h ago#40,925,894 · 13h ago#40,907,699 · 22h ago#40,902,486 · 1d ago#40,899,731 · 1d ago#40,890,063 · 1d ago#40,870,019 · 1d ago#40,867,763 · 1d ago#40,865,591 · 1d ago#40,860,595 · 2d ago#40,853,909 · 2d ago#40,847,556 · 2d ago#40,808,215 · 3d ago#40,795,921 · 3d ago#40,793,909 · 3d ago#40,789,435 · 3d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
| When | Note | Build | Update size |
|---|---|---|---|
| Nov 12, 2026 | Imperium 1.0.1.16: Plain Sight Thank you for every review, forum post and Discord message since launch. We read all of them. This update is built from what you asked for, suggested and reported, and more is on the way. From your feedback Territorial victory now depends on galaxy size: own 90% of all systems in a Small galaxy, 80% in Medium, or 70% in Large and Epic. The bar stays the same all game. Galactic Senate votes follow |
26,614,399 | +103.9 MB |
| Nov 6, 2026 | Imperium 1.0.1.4: Fine Print Performance Years pass up to 30% faster in big late-game galaxies. Moving the galaxy map camera is much smoother in big late-game galaxies. Shorter AI stutters during late-game turns. Galaxy setup (new games) New Sectors galaxies use fewer, larger sectors when there are few empires. Empires start further apart and no sector is left empty. Homeworlds start with 2 free workers. The Imperial Dome tak |
26,488,650 | 11.7 GB total |
| Nov 5, 2026 | Imperium 1.0.1.3: Stay a While A small fix for a bug that cost a player 45 minutes of progress. Your saves still load, and both changes apply to games in progress. F10 keeps you in your game. It used to return to the main menu without saving or asking. Quit to Main Menu in the pause menu is the way out, and it asks first. Gas giants read Gas Giant, with no size in front. Thank you for all the reports. Keep them coming! |
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| Nov 4, 2026 | Imperium 1.0.1.2: Steam Workshop and more Thank you for all the reports since launch. This update covers everything since 1.0.0. Your saves still load. The 3 free workers and the Mega City changes apply to new games. Steam Workshop Publish your rule sets and species appearance packs from Modder Tools. The mods you subscribe to appear in the game. Pictures and sounds you add to a mod work on other computers, and custom mod sounds play in t |
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