Welcome to the undermod masterpost!!
This is an alternate timeline made just for fun and created by @gazmei0310
So what is undermod about?
Well, Undermod is an alternative timeline of Undertale where after the player has passed the pacifist and genocidal route, he decides to make his own Undertale mod where he can play as Sans without knowing that he would end up being aware of the player's control and the modifications he made, and now sans will have to endure the player's presence
personalities
Mod sans
He mostly have the personality of the original Sans but tends to keep a lot of comments to himself about the player, all because he wants to have a better relationship and at least try to be nice to him, but he also has his limits with him and can explode, he tends to care a lot about the others and tries to be funny and nice
Player
He is an irritating and manipulative gamer, he likes to bother mod without caring much about his feelings because he thinks he is just a fictional character, although there are times when he feels bad for him, he has a very big ego and tries to do a no-hit whenever he can in a fight
So what about the other characters?
There isn't much that can be said about them since they have the same personalities and roles as in the original game, with the only change being that they don't remember Sans anymore due to the changes the player made to the game
How does player control work?
There are many points on that topic so I will explain the basics
- Mod and player are individuals but they cannot be without each other, Mod needs the player as he is his soul and the player needs Mod because without him he has no vessel to play
- mod can live without the player BUT only for a limited time and if the player uninstalled the game, mod would disappear completely unless he managed to get another soul
- There are two types of controls that the player can use, light control: the player can manipulate the actions or things that mod says but without having to directly possess his body or control it completely, he only lightly guides the actions he takes, possession: the player controls 100% of what the mod says and does, sticking to his chest like a parasite
Mod is aware of the Au's? can he interact with them?
Yes, But he can't travel between them, he can only go to other au's if someone takes him or if he knows an access route
There is much more information about mod that I could talk about, but for now this is all I can show, There are many other things that I still need to polish or simply didn't know how to explain, but for now, if you want, you can ask questions to mod and player and support this blog! I'll leave the mod and player reference sheet and Thank you so much for reading















