Adult PC Game: Grandpa's Treasure Ver. 0.1 by Lokitos Archive

The game tells the story of Arnorld, an old pervert, who needs to go live with his nephew, Rick,
and discovers that he has a beautiful wife and daughter.
But, Rick in fact only wants to know about the inheritance that the old man will leave,
so he allows the old man to come live with them, will the old man sign the will on behalf of his nephew?​

Grandpa's Treasure Ver. 0.1 by Lokitos Gameplay Preview