Nightreign Randomizer and Derandomizer

A randomizer for Nightreign which modifies the files loaded on game startup, including a derandomizer for more deterministic runs. It is compatible with Seamless Co-op.

At a base level, the only difference you might notice using the randomizer is that Night Bosses are more varied for a given Nightlord. Under the hood, it's creating map patterns nearly from scratch and has a tremendous amount of freedom in its placements. In the future this can be extended to randomizing enemies and bosses within maps and in-depth placement customization.

If you would like to provide feedback or report bugs or see detailed changelogs, you can join the discord server at https://discord.gg/QArcYud (also for Elden Ring Randomizer and other mods). This mod is under development, so please check this mod page and the server for updates.

If you'd like to support my work you can use my Ko-fi page.

Randomizer overview

Map randomizer

Refer to https://thefifthmatt.github.io/nightreign/ for a summary of how Nightreign maps work. As a summary:

- The map pattern determines the spawn point and the placement of enemy camps, bosses, special events, and final circles. There are a limited set of map patterns, 40 per Nightlord.

- The expedition seed is a 32-bit integer which determines the selected map pattern for a given Nightlord based on the Shifting Earths and active remembrances of all players in the party. It also determines first circle locations, shops, cataclysms, and scarab locations.

- Item rewards (from bosses, chests, etc) and loot piñatas from online dead players are not determined by the expedition seed.

The map randomizer can replace vanilla map patterns with randomized ones based on the randomizer seed. Each random pattern is generated independent of all other ones. There is still a limited set of patterns per Nightlord. To guarantee you get a different pattern every time, rerun randomizer with a different seed before reattempting a particular Nightlord. The randomizer has three option presets:

- Similar to base game: Exactly what it sounds like. This tries to emulate vanilla patterns as closely as possible, aside from Night Boss selection which can place any Night Boss for any Nightlord.

- Balanced random: Includes some additional randomization like changing the item reward types of enemy camps and slightly randomizing circle timing and size, which applies across all map patterns. There are added features for more interesting runs, like guaranteeing no repeats for enemy camps and guaranteeing an enemy camp with the Nightlord's weakness.

- Extra random: Removes some placement restrictions which are normally helpful for balancing purposes, like permitting any eligible spawn point even if there's no starter camp there or allowing Shifting Earth day 2 circle locations which don't c