GOG’s version is completely DRM-free – you can download an offline installer and keep it forever.
| Platform | Price (Regular) | DRM-Free? | Official Link | |----------|----------------|-----------|----------------| | | $9.99 USD | No | store.steampowered.com | | GOG | $9.99 USD | Yes | gog.com | | Humble Store | $9.99 USD (often discounted) | Yes (GOG key) | humblebundle.com | Tequila Zombies 3 PC Game Free Download Direct Link
