Steam
Strato'S Sylph Asterism
Also known as Strato'S Sylph Asterism, ssa, steam:1275230
Strato's Sylph is an air battle action STG based on the motif of fighter planes and beautiful girls. Set on the earth-like planet "Strange Sphere", the girls who wear weapons and run in the sky "Sylph" and The game depicts a battle with MARXII, a monster in the shape of a bee.
Last update
16 May 2026
Players now
0
Latest update
Update history
Browse past updates and patch notes for this game.
4 updates
May 2020
- Update ver1.03We fixed a bug that made the game impossible to progress when it was over in certain situations.
- Update ver1.02There was a mistake in the credit notation, so we have corrected it immediately.
- Update ver1.01An update has been delivered to fix the bug. The corrections are as follows. ・Fixed a bug in which the companion does not attack the enemy. ・The unnatural text is corrected.
Gallery
In-game media
Achievements
Community progression
Top picks from 15 Steam achievements, sorted by player unlock rates.
- TheFirstShootDown初めてマクシーを撃墜した90.6%
- MissionCompleted最初の任務を達成した。75.1%
- SuperRookie最初の任務でSランクを取得した。61.2%
- EscapeMissionCompleted採集部隊の退避任務を達成した。44.1%
- EscortMissionCompleted輸送機の護衛任務を達成した。29.4%
- RescueMissionCompletedノアの救助任務を達成した。27.1%