You can download it digitally via the PlayStation Network, the Nintendo eShop, or the Xbox Store.
If you want to experience the full game safely, it usually costs around . You can purchase and download the official version directly from these verified platforms: Undertale Free Download
The Undertale community is famous for creating completely free, original fan games (like Undertale Yellow ) or functional mods (like Undertale Plus ) that are safe and legal to download. You can download it digitally via the PlayStation