This mod has been updated to work with patch 1.3.1.Sectorial Lockpicing There's still a hard limit of 30 saved games before it begins prompting you to overwrite one of them. It allows you to save the game from the main menu at will, even if you don't have Schnapps in your inventory.
The idea of the Unlimited Saving mod, created by EddieShoe, is this: it's your game, so save whenever the heck you want. The idea is that with limited saves players will be more careful with their decision-making and perhaps have to live with the choices they've made, good or bad. KCD has some restrictions on when you can save your game, limiting it to when you sleep in a bed or drink 'Savior Schnapps' (in addition to autosaves and saving upon exiting the game).