Last 7 days · history since Nov 1, 2026
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
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50% positive of 2 · 2 user reviews · Live from Steam
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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.
Live data from Steam, tracked by SteamPlayerBase.
No authorized Steam key store lists this game right now.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 50% on 2026-11-01 → 50% today (2 reviews)
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Unity製ゲームの脆弱性に対するパッチを当てました
We fixed a bug that made the game impossible to progress when it was over in certain situations.
There was a mistake in the credit notation, so we have corrected it immediately.
An 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.
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.