2 stories in parallel in the same Game depending of the player's choice

Hello there, i made this account just to ask this

So, my game goes like this: Prologue, 1st Chapter, 2nd Chapter, 3rd Chapter, Ending

The prologue is nice and simple(The first demo i'll release will be the full prologue), but at the end of it, the player will be give two obrigatory choices that will shape the rest of the game:

Side with the Resistance
Side with the Villains

If the player chose option A, the 1st, 2nd and 3rd chapter will be about him/her traveling the world with the resitance and striking the villains

If the player chose option B, the 1st, 2nd and 3rd chapter will be about him/her traveling the world helping the cult of villains to expand their crime empire and domination

The thing is, i don't really know how to do this.
I already made the whole map(Cities, Fields, etc), I know the story i want, but i don't know how to implement

After all, the story will happen in the same map, but the choice you make changes the events that will happen in that map


So tl;dr, i want to do this:



Ignore the multiple ending, focus on the first problem, how can i make the map have one of the two timelines depending of the player's first choice

and yes, i am using pokémon essentials

Honestly, I would make duplicate maps and have one show all the events/dialog for one choice, and the other have the events/dialog for the other choice.

so i must make two world maps?

Uh, I wouldn't duplicate maps. If the different events happen on fairly different locations (not 10 scenes in one map) and no events actually alter any map, you could just make some events disappear with conditions. Like "if switch 001 is off, erase event" and switch 001 would be a particular route in your game scenario.

It depends on how much difference there is between the story branches.

If they are extremely different, you copy the basic maps and fill them with different events, and redirect the player to one or the other map series depending on the choice.

If they are rather similiar and only differ in some events, then you use the same maps but condition the events to different switches and have the choice event turn those switches on or off depending on player choice.

They are different and happen on the same maps, but on different order

As an example, Choice A make player go to City A then B, but at the end of the chappter the player will go to a showdown on city D
Choice B makes Player go to city C then City B and later City A, but at the end of the chappter the player will go to a showdown on city D
The showdown just change how the player will see the events depending on their side