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eden-seed-finder

Find a seed of The Binding of Isaac: Repentance that Eden starts with certain items, cards, health, pickups or stats, and the Home floor has some specific pickups. It works for Repentace v1.7.9b and Repentance+ v1.9.7.8.

Usage

put this folder in /path/to/tboi/mods (the directory where Isaac stores your mods).

For other versions of TBOI

Extract Isaac's resources with /path/to/tboi/tools/ResourceExtractor/ResourceExtractor.exe, and then execute the following command:

cp /path/to/tboi/resources-dlc3/items.xml \
   /path/to/tboi/resources-dlc3/items_metadata.xml \
   item_data/

Change the ITEM_COUNT and STAGE_COUNT constants in constants.hpp according to your Isaac version.

Assume that the generator being used is named generator.cpp, and make sure the script being used is named main.lua. You can easily modify the existing generators and scripts to search for other items or cards.

g++ generator.cpp -o generator -O2 -std=c++20
./generator > seeds.txt

Copy the contents of seeds.txt to the seeds_list in main.lua. Launch TBOI, enable this mod (named eden_seed_finder), and start a run as regular Eden. If you use main_tmtrainer.lua, you need to give yourself TMTRAINER, execute stage 13 manually, and then enter the corridor below Isaac's bedroom. If you use main_greed.lua, start in Greed Mode. Press T, and the mod will start to search for a seed that meets the corresponding given conditions. For scripts older than main_dz_exp.lua, all the seeds they found will be printed to the Debug Console, with some additional information. The newer scripts will save their output in JSON format after Y is pressed, to /path/to/tboi/data/eden_seed_finder/saveX.dat. Hold Y if you want to cancel the search.