Kingdom Come: Deliverance already has an unlimited saves mod
https://www.pcgamer.com/kingdom-come-deliverance-unlimited-saves-mod/
Kingdom Come: Deliverance does a noble job at attempting realism, but one of its resulting quirks is a bit annoying: you can't save whenever you want. Instead, you must consume Saviour Schnapps, which if used excessively, will cause protagonist Henry to become addicted (they're quite expensive, too).
Never mind that drinking schnapps in real life doesn't allow us to pause one life in order to re-engage with another, more real, parallel life. What matters is that most people seem to dislike the save system. Thankfully there's already a mod that allows you to do away with it.