ExtraGamerules

This mod adds a bunch a new gamerules and some from the bedrock edition of the game.

Gamerules:

• lightningProbablity: /gamerule lightningProbability <integer>
  This number means there is 1 chance out of (number) that an EntityLightningBolt spawns when it's raining, setting it to 0 or lower will disable lightning bolts. (default: 10000)

• lightningFire: /gamerule lightningFire <boolean>
  Enables/disables fire created by ligthning. (default: true)

• lightningDamage: /gamerule lightningDamage <float>
  Damage dealt by ligthing (default: 5.0)

• lightningRange: /gamerule lightningRange <double>
  Entites inside this range will be damaged by ligthning (default: 3.0)

• lightningHorseSpawningModifier: /gamerule lightningHorseSpawningModifier <double>
  Controls how often horse traps should spawn. (default: 0.01)

• doInsomnia: /gamerule doInsomnia <boolean>
  Enables/disables phantom spawning. (default: true)

• tntExplodes: /gamerule tntExplodes <boolean>
  Enables/disables tnt explosion. (default: true)

• explosionPowerModifier: /gamerule explosionPowerModifier <float>
  Adjusts power of all explosions by multiplying it to the actual explosion power. (default: 1.0)

• pvp: /gamerule pvp <boolean>
  Enables/disables pvp combat. (default: true on singleplayer, on servers, depends on the pvp property in server.properties)

• drowningDamage, fallDamage, fireDamage: /gamerule drowningDamage <boolean>
  Enables/disables drowning, fall or fire damage, respectively. (default: true)

• doSnowMelt: /gamerule doSnowMelt <boolean>
  Enables/disables snow and ice melting. (default: true)

• pistonPushLimit: /gamerule pistonPushLimit <integer>
  Controls the maximum number of blocks which can be moved by pistons. (default: 12)

• doHunger: /gamerule doHunger <boolean>
  Enables/disables food bar depletion in survival. (default: true)

• instantRespawn: /gamerule instantRespawn <boolean>
  If set to true, players will be immediately teleported to their respawn location without being shown the death screen. (default: false)

You can reset a numerical gamerule to its default value by setting to a negative value.

This mod requires Fabric (https://minecraft.curseforge.com/projects/fabric).