Sublight Empire vs InvaZium
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sublight Empire
Experience a unique 4X space strategy game where actions and events unfold over years due to the speed of light limitations. Explore, colonize, and conquer star systems to achieve galactic dominance.
- Relativistic speed of light mechanics
- Real-time command propagation delays
- Explore and colonize star systems
- Defend and conquer colonies
- Classic 4X gameplay
- Galactic conquest objective
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Einstein's theory of relativity states that nothing is faster than light. This also applies to this game. Information is radio signals propagating at the speed of light. These radio signals transmit your commands and the events you receive. Spaceships move at a fraction of the speed of light. So it takes years for a command or a spaceship to reach its destination. When a battle takes place, you won't know about it until years later. Apart from this, it is a classic 4X game. In the beginning you rule a single star system and you are exploring and colonizing the surrounding systems. Later on you will meet your opponents and you will have to defend and conquer colonies. To win the game, you must conquer 2/3 of all stars.
InvaZium
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The planet EKC-567 is being invaded by colorful meteorites, but Korn-67, a small alien, is determined to protect his planet from the invaders. You have to shoot the invading meteorites ready to destroy the planet of Korn-67.
Screenshots
Verdict
The clearest difference is update cadence: InvaZium at every 6 days against Sublight Empire's every 6 months. InvaZium also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sublight Empire ships an update every 6 months, InvaZium every 6 days. The most recent releases landed on September 20, 2026 and September 11, 2026 respectively.
| Parameter | Sublight Empire | InvaZium |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Enrico Unger | Daniel Canete Campos |
In-app purchases
Sublight Empire
No in-app purchases
InvaZium
No in-app purchases
