The primary goal in Last Stronghold: Idle Survival is to construct and manage a stronghold in a post-apocalyptic setting. Players need to gather resources, build structures, and recruit survivors to defend against zombie waves. The game blends strategy and idle gameplay, enabling progress even when not actively playing.

Yes, the game is free to download and play. It includes in-app purchases that let players enhance their experience, such as acquiring resources, special items, or premium features to speed up progress or gain additional advantages.

The game is available on Android and iOS devices. Players can download it from the Google Play Store and the Apple App Store, making it accessible to a broad audience.

Yes, the game can be played offline. This allows players to enjoy the game without an internet connection. However, certain features like in-app purchases or online events may require internet access.

The idle gameplay allows players to continue making progress even when not actively playing. Resources are automatically gathered, and some tasks are completed over time. This design enables players to focus on strategy and planning upon return, balancing active involvement with passive growth.