This program reads a Zelda: Oracle of Seasons or Oracle of Ages ROM, shuffles the locations of (most) items and mystical seeds, and writes the modified ROM to a new file. In Seasons, the default seasons for each area are also randomized. Most arbitrary overworld checks for essences and other game flags are removed, so the dungeons and other checks can be done in any order that the randomized items facilitate. However, you do need to collect all 8 essences to get the Maku Seed and finish the game.

This is a fork of jangler's original randomizer. See ng_differences.md for a list of differences.

At this time, this version of the randomizer only works on the commandline, and you must be able to build the disassembly first. Non-technical users can use the web interface instead.

To run it locally: You must first build oracles-disasm from the submodule in this project, which produces modified oracles ROMs. Then, run ./oracles-randomizer-ng oracles-disasm/seasons.gbc <output rom>. Only Seasons is supported at the moment.

When building the disassembly, there will be a file named seasons.sym created along with seasons.gbc. It is very important that this file is in the same directory as seasons.gbc, otherwise this won't work.

Unavailable at the moment.

General details common to both games:

• Items and chests are randomized, with these exceptions:
  • Renewable shop and business scrub items (bombs, shield, hearts, etc.)
  • Gasha seeds and pieces of heart outside of chests
  • NPCs that give non-progression items in the vanilla game
  • Gasha nut contents
  • Fixed drops (from bushes, pots, etc.)
  • Maple drops
  • Linked secrets
• Mystical seed trees are randomized, with no more than two trees of each type. Items that use seeds for ammunition start with the type of seed that's on the Horon Village or Lynna City tree.
• For items that have two levels, the first you obtain will be L-1, and the second will be L-2, regardless of the order in which you obtain them. The L-2 shield is an exception.
• There is one flute in the game for a random animal companion, and it's identified and usable as soon as you get it. Only the 150-rupee item in the shop is randomized; the other two usual means of getting a strange flute don't give anything special. The animal companion regions (Natzu in Seasons and Nuun in Ages) match whatever flute is in the seed.
• Rings are instantly appraised when you get them, and the ring list can be accessed from the inventory ring box icon. For convenience, the L-3 ring box is given at the start. The punch rings can be used with only one equip slot empty.
• Select+right on the file select screen toggles music. Select+left on the file select screen toggles between GBC palettes (default) and lighter GBA palettes; this will only have an effect if you're playing on or emulating a GBA.
• If tree warp is enabled, holding start while closing the map screen outdoors warps to the seed tree in Horon Village or Lynna City. Tree warp comes with no warranty and is not supported as a "feature", so think carefully before using it.
• If hard difficulty is enabled, speedrun-level tricks may be required to complete the game. Use normal difficulty if you just want to do a casual playthrough!

For game-specific notes on randomization and logic, see seasons_notes.md and ages_notes.md.

See multiworld.md for information on multiworld seeds.

See plan.md for information on plando generation.

Q: Is there a place to discuss the randomizer?

A: Yes, the Oracles Discord server. The server is mainly focused on speedrunning, but randomizer-specific channels exist as well.

Q: I found a problem. What do I do?

A: Open an issue about it on GitHub or bring it up in a randomizer channel in the Oracles discord. Provide your seed's log file either way.

Q: Can I do a linked game?

A: Linked games are currently disabled. They will probably be re-enabled later after being tested properly but it's low-priority.

• Jangler for the original oracles-randomizer.
• Herreteman, dragonc0, Phoenomenom714, and jaysee87 for help with logic, playtesting, design, and "customer support".
• Dan Jia (https://github.com/vinheim3) for his implementation of cross-items
• Everyone who helped playtest prerelease versions of the randomizer.