Doki Doki Acclamation
Most mods install on top of a fresh copy of DDLC, free from ddlc.moe. Follow the author's instructions, and keep a clean copy of the game.
About this mod
Doki Doki: Acclamation! You had mixed feelings after having played a rather peculiar visual novel that behaves like a dating simulator. Things were out of whack at some point and all hell broke loose. One fine day, the game exhibited a rather odd behavior... You were thrusted into the exact same game again. However, not everything is what it seems... You noticed a strange new unlockable that you never expected to see before: a super ultra secret Encore Mode! What did the game mean by "Encore Mode"? You clicked on the button that read "New Game". What came next is a genuine headscratcher indeed...