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The Stellar Upgrade expands the party with a new world, two new pilots and a new game mode.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
Steam Train Fest ends
Official stores with direct support.
This is the base game required to play this DLC. Other expansions may also be required.
The Stellar Upgrade expands the party with a new world, two new pilots and a new game mode.
Flare Watch - a dangerous outpost
Box Cat - the Street Brawler
Dina - the Lost Huntress
Deathmatch - a non-stop onslaught in a single arena
Lowest tracked price: €2.49 (Jul 7, 2026) · current best: €2.49.
Right now the cheapest offer for Astro Party EX - Stellar Upgrade is €2.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Astro Party EX - Stellar Upgrade is €2.49 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Astro Party EX - Stellar Upgrade drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
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