The Binding of Isaac: Repentance

Where is the settings page?

The player settings page for this game contains all the options you need to configure and export a config file.

What does randomization do to this game?

The Binding of Isaac: Repentance is already random. The Archipelago mod only implements multiworld functionality in which certain pedestal items will be replaced with an AP Check item when you try to pick them up that will send an item out to the multiworld. When an item gets replace is configured via the item pickup step setting. The items that would have been in those places will be returned to the player via grants by other players in other worlds.

What is the goal of The Binding of Isaac: Repentance in Archipelago?

In The Binding of Isaac: Repentance the goal is always tied to a configurable amount of required locations. The goal can be just collecting that amount or beating a (also configurable) ending boss after collecting that amount. To reach that goal you will probably have to do multiple runs.

Does the mod affect my saves?

It does not. If you want to clear later bosses and don't want to bother with unlocking, you can use the isaac-save-insaller by Zamiell to install a fully-unlocked save file and backup you old saves.

Can you play multiplayer?

ToDo: needs testing

What The Binding of Isaac: Repentance items can appear in other players' worlds?

By default, The Binding of Isaac items are:

Treasure Room Item
Shop Item
Boss Item
Devil Deal Item
Angle Deal Item
Secret Room Item
Library Item
Curse Room Item
Planetarium Item
Golden Chest Item
Red Chest Item
"trash" items (pickups like random hearts, coins, etc.)
(optionally) traps

Each item grants you a random in-game item from that item pool. Normally the items granted by other worlds will directly be added to your inventory, the exception being active items. If you cannot hold another active item the incoming item will spawn on a pedestal in the current room. "Trash" items will always spawn on the ground.

Items can also be configured to be from any item pool or even to be any specific item via custom item weights.

How many items are there?

In The Binding of Isaac: Repentance you can configure how many collectible items (also known as "checks") the game has. You can configure anywhere from 10 to 500 items. The number of items will be randomized between all players, so you may want to adjust the number and item pickup step based on how many items the other players in the multiworld have. (Around 150 seems to be a good ballpark if you want to have a similar number of items to most other games.)

After you have completed the specified number of checks, you won't send anything else to the multiworld and items will not be replaced anymore, so you can continue playing as normal.