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Grandpa goes on a third person, action adventure killing rampage, with his grandson after his smoking session was interrupted by a phone call.
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 Social Deduction Fest ends
Official stores with direct support.
A strange phone call has invaded the peace of Grandpa… Only you have the power to rescue the mistress so Grandpa can return to chill in his house. The neighborhood is now your fight arena for an epic fight to rescue the mistress, kill all the enemies! Can you rescue the mistress?
Campaign
Grandpa will have a visually stunning retro third person action adventure campaign that will keep you on the edge of your seat, with semi open linear level environments with very good world building and storytelling. Grandpa will have intensely gratifying gameplay experience blending Retro graphics with modern third person mechanics.
Free DLC:
The game includes the Free DLC inside the game and the 2nd Free DLC is currently in development.
Right now the cheapest offer for Grandpa High on Retro is CA$7.86 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 Grandpa High on Retro is CA$6.29 (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 Grandpa High on Retro 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.
