Modrinth · Minecraft modpack

old and optimized

Optimises minecraft to run on older computers.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which old and optimized release should I use?

Updated 1 year ago

Latest stable file old and optimized for 1.21.5

Game version 1.21.5

Loader Fabric 0.16.14

old and optimized for 1.21.5 is a complete pack release for 1.21.5 with Fabric 0.16.14. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 10 mods in this pack file.

Pack setup

How should I set up old and optimized for players and a server?

Use old and optimized for 1.21.5 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install old and optimized for 1.21.5

Dedicated server setup Match old and optimized for 1.21.5

Pack loader Fabric 0.16.14

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Plan the server requirements Read the Minecraft installation guide

Referenced mods 10

Client only 4

Server only 0

Not labelled 6

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for old and optimized?

old and optimized for 1.21.5. Change the pack release and its contents or setup may change too.

10 mods in this pack file

The selected pack release is old and optimized for 1.21.5. That file is for Minecraft 1.21.5 with Fabric 0.16.14. It contains 10 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is old and optimized?

this modpack aims to make minecraft run as fast as possible on low end/old systems. It should only be used on older pcs.

it's recommended to choose the 1.16.5 version, as it runs better and has more mods.

mods included (1.16.5)

Better Beds [1.1.0] by Motschen, TeamMidnightDust
Dynamic FPS [3.9.4] by juliand665, LostLuma
Enhanced Block Entities [0.4] by FoundationGames
EntityCulling-Fabric [1.5.2] by tr7zw
FPS Reducer [1.24-mc1.16.5] by bre2el
Fabric API [0.42.0+1.16] by FabricMC
FerriteCore [2.1.1] by malte0811
Krypton [0.1.2] by tuxed
LazyDFU [0.1.2] by tuxed
Let Me Despawn [1.3.2c] by frikinjay
Lithium [0.6.6] by JellySquid
Memory Leak Fix [1.1.5] by FX - PR0CESS
ModernFix [5.18.0+mc1.16.5] by embeddedt
Phosphor [0.8.0] by JellySquid, PhiPro
Sodium [0.2.0+build.4] by JellySquid
retiNO [1.0.1] by juliand665

mods included (1.21.4)

Almanac [1.4.4] by frikinjay
Better Beds [1.4.1] by Motschen, TeamMidnightDust
Dynamic FPS [3.9.4] by juliand665, LostLuma
Enhanced Block Entities [0.11.3+1.21.4] by FoundationGames
EntityCulling [1.7.4] by tr7zw
FPS Reducer [1.21.3-2.11] by bre2el
Fabric API [0.119.2+1.21.4] by FabricMC
FerriteCore [7.1.1] by malte0811
Krypton [0.2.8] by tuxed
Let Me Despawn [1.5.0] by frikinjay
Lithium [0.15.3+mc1.21.4] by JellySquid, 2No2Name
ModernFix [5.20.3+mc1.21.4] by embeddedt
Sodium [0.6.13+mc1.21.4] by JellySquid (jellysquid3)

mods included (1.21.5)

Almanac [1.4.5] by frikinjay
Dynamic FPS [3.9.4] by juliand665, LostLuma
EntityCulling [1.7.4] by tr7zw
FPS Reducer [1.21.5-2.12] by bre2el
Fabric API [0.124.2+1.21.5] by FabricMC
FerriteCore [8.0.0] by malte0811
Krypton [0.2.9] by tuxed
Let Me Despawn [1.5.1] by frikinjay
Lithium [0.16.2+mc1.21.5] by JellySquid, 2No2Name
Sodium [0.6.13+mc1.21.5] by JellySquid (jellysquid3)

how do I install?

to install this modpack (or any modpack on modrinth), you'll need

a launcher which can install .mrpack files (most modern launchers)
that's basically it

here is the full image tutorial (for prism launcher/multimc)

guide

step 1

step 2
and then search for the modpack, and click download!

download prism launcher

Project description from Modrinth.

Mods in old and optimized for 1.21.5

Open any mod on Modpacks.ch to check its files and dependencies.

Almanac-1.21.5-fabric-1.4.5.jar SHA-1 414a764b967bf28fd866d9705378c12169c345d2 · Modrinth version mzFZuKaS · Project link unavailable Side not labelled

dynamic-fps-3.9.4+minecraft-1.21.5-fabric.jar SHA-1 317fa92e11ff83bdda2dce899c1d096ef16fca9f · Modrinth version wrSjf4ld · Project link unavailable Client only

entityculling-fabric-1.7.4-mc1.21.5.jar SHA-1 fbe1f45c60abb5e9e586cbfe13e761da1831d3cb · Modrinth version 29GV7fju · Project link unavailable Client only

fabric-api-0.124.2+1.21.5.jar SHA-1 501c7e6a5badeea15b266d25ca12b0a95e1e09ab · Modrinth version SQv5lrom · Project link unavailable Side not labelled

ferritecore-8.0.0-fabric.jar SHA-1 53d76354587cd1965b842fdce7cff965b5c52fe5 · Modrinth version CtMpt7Jr · Project link unavailable Side not labelled

FpsReducer2-fabric-1.21.5-2.12.jar SHA-1 02d578e83ac47e61f372baa267378675b0928a0f · Modrinth version zDXdXvpu · Project link unavailable Client only

krypton-0.2.9.jar SHA-1 45a1cba4e4fbd1e4885583699739bd8ad73ba5e6 · Modrinth version neW85eWt · Project link unavailable Side not labelled

letmedespawn-1.21.5-fabric-1.5.1.jar SHA-1 c8cb1a8ed222229a76d68bd3cb463fa4889d08a7 · Modrinth version M9egl08c · Project link unavailable Side not labelled

lithium-fabric-0.16.2+mc1.21.5.jar SHA-1 6216d899b7ba74838ada9be140aa743b39aa3193 · Modrinth version VWYoZjBF · Project link unavailable Side not labelled

sodium-fabric-0.6.13+mc1.21.5.jar SHA-1 6a7132ea86653541fa53ef88c764c8ac0cde81cc · Modrinth version DA250htH · Project link unavailable Client only

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