Game artwork from the official Steam store; rights belong to the respective publisher.
Steam store edition · PC
CN · CNY · Steam
Price observed in the CN store. A Steam account is required. Check the store for package contents, operating-system support and regional purchase restrictions.
Steam store edition · PC
DE · EUR · Steam
Price observed in the DE store. A Steam account is required. Check the store for package contents, operating-system support and regional purchase restrictions.
Steam store edition · PC
US · USD · Steam
Price observed in the US store. A Steam account is required. Check the store for package contents, operating-system support and regional purchase restrictions.
In 2222 AD, only 5% of humanity survived the alien invasion.
The aliens have begun their final attack.
Defeat the aliens by firing the guns of the KPO9, humanity’s strongest surface-to-air weapon.
Intercepting enemies gives you EXP, which you can use to upgrade your weapon.
The fully automatic missile pods that help you attack can also be upgraded.
The future of humanity lies in your hands.
Official store excerpt · Description source ↗
Read the store description ↗
Included content and base-game requirements have not been verified in the published record. Check the linked product source before buying.
Play on: PCCheck product contents and requirements ↗CN / CNY · Steam · This exact edition and purchase conditions only.
One recorded observation. Not enough data to show a price trend.
CNY 3.60 lowest in the displayed observations, from Oct 16, 2026, 10:42 AM UTC to Oct 16, 2026, 10:42 AM UTC.
| Observed at (UTC) | Price |
|---|---|
| Oct 16, 2026, 10:42 AM UTC | CNY 3.60 |
DE / EUR · Steam · This exact edition and purchase conditions only.
One recorded observation. Not enough data to show a price trend.
EUR 0.79 lowest in the displayed observations, from Oct 16, 2026, 10:27 AM UTC to Oct 16, 2026, 10:27 AM UTC.
| Observed at (UTC) | Price |
|---|---|
| Oct 16, 2026, 10:27 AM UTC | EUR 0.79 |
US / USD · Steam · This exact edition and purchase conditions only.
One recorded observation. Not enough data to show a price trend.
USD 0.79 lowest in the displayed observations, from Oct 16, 2026, 10:07 AM UTC to Oct 16, 2026, 10:07 AM UTC.
| Observed at (UTC) | Price |
|---|---|
| Oct 16, 2026, 10:07 AM UTC | USD 0.79 |