A simple mod that brings back the classic gamerule names to MC 1.21.11+<\/p>\n
Minecraft renamed all gamerules from camelCase to namespaced:snake_case in 25w44a (1.21.11 snapshot),
\nand even reverted the values of some rules, which broke all existing usage of gamerules.
\nThis is a poorly implemented incompatible change. Let’s “revert” it by restoring the old names in Minecraft.<\/p>\n
For example, classic gamerules like `doDaylightCycle` were changed to `advance_time` (actually `minecraft:advance_time`), and `doMobSpawning` became `spawn_mobs`<\/p>\n
## What This Mod Does<\/p>\n
Functionalities:<\/p>\n
1. Add all camelCase names as aliases for existing gamerules, e.g. `\/gamerule doMobSpawning false` will work again now
\n2. Correctly mapped rule values that were inverted, e.g., `disableElytraMovementCheck` has the opposite value of `minecraft:elytra_movement_check`<\/p>\n
Limitation:<\/p>\n
1. This mod only restores the classic naming conventions and value mappings.
\n It does not revert the newly added value constraints for certain gamerules (e.g. `minecraft:max_entity_cramming`)
\n2. Classic rule `doFireTick` and `allowFireTicksAwayFromPlayer` are read-only now.
\n Since their successor `minecraft:fire_spread_radius_around_player` cannot perfectly express the intention of these 2 old rules <\/p>\n
## Requirement<\/p>\n
This mod is server-side only (including single-player worlds) and requires no additional dependencies.
\nIt supports all Minecraft versions since 1.21.11<\/p>\n","protected":false},"excerpt":{"rendered":"
Bring back the classic camel-case gamerules to MC 1.21.11+<\/p>\n","protected":false},"featured_media":40698,"template":"","meta":{"_minecraft_slug":"classic-gamerule","_minecraft_project_id":"FSWe8RZ3","_minecraft_author":"fallen-breath","_minecraft_license":"LGPL-3.0-only","_minecraft_downloads":726,"_minecraft_follows":4,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"classic-gamerule.zip","_minecraft_size_bytes":555893,"_minecraft_version_count":17,"_minecraft_updated_at":"2026-05-15T23:07:08.895314Z","_minecraft_date_created":"2025-11-12T00:32:47.021285Z","_minecraft_date_modified":"2026-04-16T18:12:53.801438Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/classic-gamerule","_minecraft_icon_attachment_id":40698,"_minecraft_imported_at":"2026-06-01T21:59:44+00:00","_minecraft_import_hash":"a236f8076a5c7a9b4e9b45561796707f","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[97,104,158,92],"mod_loader":[99,106,160],"minecraft_version":[41,810,814,806,807,83,167,163],"class_list":["post-40697","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-fabric","mod_category-forge","mod_category-neoforge","mod_category-utility","mod_loader-fabric","mod_loader-forge","mod_loader-neoforge","minecraft_version-1-21-11","minecraft_version-1-21-11-pre3","minecraft_version-1-21-11-rc2","minecraft_version-25w45a","minecraft_version-25w46a","minecraft_version-26-1","minecraft_version-26-1-1","minecraft_version-26-1-2"],"yoast_head":"\n