Forgotten Hill: Puppeteer (Total freedom from in-app purchases).
This is a spine-chilling first-person, action-packed co-op horror game. While primarily a paid game on platforms like Steam, it is frequently searched for in conjunction with free demos or indie alternatives, such as "Puppeteer's Lament" on Itch.io. PUPPETEERS Free Download
This is a popular totally free horror escape game for Android and iOS. It involves solving puzzles in a "grotesque Puppet Theatre" and is available to download from FM-Studio on the Google Play Store . PUPPETEERS Free Download