It can effect mob spawning on singleplayer worlds, but not on servers like Hypixel, etc.

Ok also do you know if mods that show a timer are allowed

Yes, they are allowed if they are accurate. If they aren't and the timer has a deviancy, then it's pretty much cheating.

Can I use optifine if I’m on a server?

Maccysundae

SpedWill

Dolce

Minecraft: Java Edition

MushyMeow

Meiya

Sharkoff

Basil_18

andres_william

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.3.1

1.3.2

1.4.2

1.4.4

1.4.5

1.4.6

1.4.7

1.5.1

1.5.2

1.6.1

1.6.2

1.6.4

1.7.2

1.7.4

1.7.5

1.7.9

1.7.10

1.8.1 Easy

Normal

Hard

Hardcore

1.8.2

1.8.3

1.8.4

1.8.5

1.8.6

1.8.7

1.8.8 4 Players

5-9 Players

10+ Players

1.8.9

1.7.6

1.7.7

1.7.8

1.9.1

1.9.2

1.9.3

1.9.4

1.10

1.11.2

1.11

1.12

1.12.1

1.12.2 2 Players

3 Players

1.7.3 Set Seed

Random Seed

1.1-1.6

1.8-1.11

No F3

1.13

1.13.1

1.13.2

1.10.2

1.14

1.14.2

1.14.3

1.14.4

1.15

1.15.1

1.15.2 Pre 1.8

1.13-1.15

Pre 1.9

1.14+

1.9-1.15

Vanilla

Version

Difficulty

Player Count (Any% Glitchless Co-op)

Seed Type (Any% Glitchless)

Version Range (AAch)

Seed Type (Any%)

Seed Type (Any% (Peaceful))

Seed Type (Any% Glitchless (Peaceful))

Seed Type (AAch)

Version Range (AAdv)

Seed Type (AAdv)

Version Range (Any% Glitchless)

Version Range (Any%)

Version Range (Any% Glitchless Co-op)

Mods

Version Range (Any% Glitchless (Peaceful))

Version Range (Any% (Peaceful))

Version Range (Any% Glitchless (Demo))

Player Count (AAdv Co-op)

Seed Type (AAdv Co-op)

Version Range (AAdv Co-op)

Seed Type (Combined Any% Glitchless)

Seed Type (Any% (Time Travel))

Seed Type (Any% Glitchless Co-op)

Splits (Combined Any% Glitchless)

If you save & quit/close the game at any point during the run, choose External.

Internal/External (Any%)

## **Rules v5 Release**

View the current version of the rules at **<https://www.minecraftspeedrunning.com/public-resources/rules>**

This is a unique release, as no rule changes were made. This release should be functionally identical to rules v4, with only minor whitespace and formatting changes.


Rules v5

Update on version tracking for legal mods

Rules v4

Minecraft

Minecraft Speedrunning Questions Thread

Form for requesting custom map / server leaderboards

Full Netherite

How To Setup Random Seed 1.16.1 Mods? Can someone help me?

1.8.9 StandardSettings / Wall setup

Longest Survival Distance Traveled in the End

Awesomecuber

AprilSR

skylewl

draconix

Luminosity

ElRichi

DrGuy

Keima

ntrprs

Specnr

AlEmeralds

Armpitsmoothie

audioSalix

silverr

gaylea

BSRF

luvvlyjude

taffel

Hayley

3sonya

tildejustin

the_yuukster

r0hkx

Zac99LOL

leto_saa

Niro69420

TheLoTro

Toffitek

Desi_pixel

Pal153

_vxzz