At what point does ToTD decide to save my progress?

[welshrob]

I dl the game last night and played for awhile. I thought I had played far enough because of screen prompts that when I quit the game and game back I would not have to start over but I did have to start again. What am I missing ? Any help is appreciated. Thanks

[SillyWalk]

The game is divided into chapters. When you beat a chapter, you return to the level selection screen and unlock the next one. I suppose you exited the game without finishing the level (each level ends with a boss fight).

[welshrob]

Gotcha. Thanks !