InsaneLib Needed by Progressive Bosses 4.3.12
requiredMatching file found Matched file: 1.23.4.6
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CurseForge · Minecraft mod
Progressive Bosses
Makes Wither and Ender Dragon harder the more you kill 'em
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Progressive Bosses release should I use?
Latest stable file 4.3.12
Game version 1.20.1
Loader Forge
Progressive Bosses 4.3.12 targets 1.20.1 with Forge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. All 2 required mods have matching files.
Where it goes
Is Progressive Bosses required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Progressive Bosses 4.3.12 need?
4.3.12. Change the file and its required mods may change too.
Install InsaneLib, Area Effect Clouds 3D first. We found matching files for this game-version and loader setup.
Area Effect Clouds 3D Needed by Progressive Bosses 4.3.12
requiredMatching file found Matched file: 1.0.4
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Progressive Bosses without breaking your instance.
Built for Progressive Bosses 4.3.12. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 4.3.12. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install InsaneLib, Area Effect Clouds 3D first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 4.3.12. It opens that exact file at the source.
About this project
What does Progressive Bosses add?
For the Fabric port, check [Fabric] Progressive Bosses (note this is not affiliated with me, please report issues to the developer)
This mod requires InsaneLib
This mod makes Wither and Ender Dragon harder by letting you summon a stronger version of them. Also makes the Elder Guardian's fight harder.
The difficulty will adapt based off the players around the boss.
- More health: they're bosses ... why can they go down with a few hits?
- New abilities: like Wither Charging or Dragon respawning crystals
- Minions: both Dragon and Wither have Minions
- Caged crystals: more cages will spawn around crystals, and some crystals will spawn inside towers
- Faster Acidballs and Skulls: dodging is harder
- Elder Guardian Fight's harder and with an actual reward!
- Many many bug fixes: Mojang no longer cares about the survival aspect of the game
- And much much more! This is only the tip of the
towericeberg.
Video showcases
Become a patreon to try out newer versions early and play on the public server.
Check out my other Projects!
Modpack Permssions
Do whatever you want for modpacks, public or private they are!
Stop Mod Reposts
Don't download this mod from any other website than Curseforge or Modrinth. It might be malware and might harm your PC. Check https://stopmodreposts.org for more infos.
Project description from CurseForge.
Pick your setup
Progressive Bosses by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.20.1
2 loader buildsMinecraft version
1.20
2 loader buildsMinecraft version
1.19.4
1 loader buildMinecraft version
1.19.3
1 loader buildMinecraft version
1.19.2
2 loader buildsMinecraft version
1.19.1
1 loader buildMinecraft version
1.18.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Progressive Bosses versions and loaders
4.3.12
progressivebosses-4.3.12.jar
7 Mar 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · matched Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.11
progressivebosses-4.3.11.jar
15 Nov 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 4 required · 4 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.10
progressivebosses-4.3.10.jar
7 Sept 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 3 required · 3 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.9
progressivebosses-4.3.9.jar
7 Sept 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · 2 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.9
progressivebosses-4.3.9.jar
19 Aug 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 3 required · 3 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.8
progressivebosses-4.3.8.jar
7 Aug 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · 2 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.7
progressivebosses-4.3.7.jar
6 Aug 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · 2 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.6
progressivebosses-4.3.6.jar
5 Jul 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 3 required · 3 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.5
progressivebosses-4.3.5.jar
29 Jun 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · 2 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.4
progressivebosses-4.3.4.jar
26 May 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 3 required · 3 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
4.3.3
ProgressiveBosses-4.3.3-mc1.20.1.jar
12 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge beta
4.3.2
ProgressiveBosses-4.3.2-mc1.20.1.jar
10 Apr 2025
Client Optional Server Optional Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge beta
Looking for an older file? The official CurseForge project page is in Resources.
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