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IC2 Experimental builds (jenkins):
v2.0/2.1/2.2 / 2.3 / 2.5 / 2.6 (For Minecraft 1.6.4/1.7.2/1.7.10 / 1.8.9 / 1.9.4 / 1.10)
IndustrialCraft² recent version: v1.117! (For Minecraft 1.5.2 → topic)

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Wednesday, June 29th 2016, 10:25am

Modpack permissions

I just want to let you know that i want to use your Mod (Fastcraft) in my Modpack.

Thank you for this great mod !
I'm not a signature, i'm just here to clean this area!


Friday, July 1st 2016, 9:44pm

The 1.10 version will take a while, it's tricky.


Thursday, July 7th 2016, 5:13pm

Including in modpack(series)

Hey I just like to say I'm going to be including your mod in my modpack


Friday, July 8th 2016, 1:46am


Hey Player, just notifying you I will be using your mod FastCraft in a modpack. Thanks for the awesome mod!


Cute and fluffy

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Sunday, July 10th 2016, 11:42pm

Are there any known conflicts with optifine/other mods in the latest version? After playing on my world for a while, the game starts to have massive delay when doing anything other than walking, but it gets fixed when I reload chunks (eg going to the nether or exiting and re-entering). I'm not really sure what's causing it and the logs don't show much
Now you see me, now you don't...


Monday, July 11th 2016, 8:44pm

Hello. I am letting you know I am using your mod, Fastcraft, in my modpack, Arctic Arrival.


Tuesday, July 12th 2016, 7:54am

The 1.10 version will take a while, it's tricky.
Can you post test builds of 1.10.2 version? so we can test it and send crash reports.
Sovereignty unconditionally belongs to the Nation -Mustafa Kemal ATATÜRK


I'm a dragon!

  • "ExDomino" is male

Posts: 17

Location: Canada

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Tuesday, July 12th 2016, 10:36pm

Hello, I'm playing with the modpack "FTB Infinity Evolved 2.5.0" on Minecraft 1.7.10 and I have a crash when I'm on the Nether. It's apparently random, but always at the same place. The crash is client-side only, not server-side. FastCraft's version is 1-23. Thank in advance!


Thursday, July 14th 2016, 8:17am

please make 1.10.2 fastcraft, i can't even open my world right! it lags so much, so i need fastcraft for 1.10.2!
Sovereignty unconditionally belongs to the Nation -Mustafa Kemal ATATÜRK


Thursday, July 14th 2016, 9:27pm


I am using this mod in my current project, Into the Murk, to increase the performance and FPS so others can enjoy the modpack more.


Sunday, July 17th 2016, 7:43pm

Player, just give date of the releasing test build of 1.10.2. i check this website everyday just for fastcraft 1.10.2!
Sovereignty unconditionally belongs to the Nation -Mustafa Kemal ATATÜRK


Monday, July 18th 2016, 2:38am

Player, just give date of the releasing test build of 1.10.2. i check this website everyday just for fastcraft 1.10.2!
No offence dude, but I silently check this forum every day as well and am getting tired of seeing you harass for a mod update. Player will update when he has the time to. I'm sure he has a life, which is way more important than releasing fastcraft for 1.8, 1.9, or 1.10. He could release in 2017 and life will still go on. Posting here once every couple days wont change the fact that making minecraft mods takes time. He is the author of the mod and I am sure is well aware that his mod is very useful, and that many people probably rely on the mod. So chill out, and wait like the rest of us, patiently.


Tuesday, July 19th 2016, 12:07pm

okay :P
Sovereignty unconditionally belongs to the Nation -Mustafa Kemal ATATÜRK


Tuesday, July 19th 2016, 7:10pm

Modpack Perm

Hello player. I will be using your mod fastcraft in my modpack FTB challenge map. Its a remake of the old pyramid map


Thursday, July 28th 2016, 10:19pm

Hey Player

I recently have my clients crash with an error

java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException: 65535

I've seen that you solved this issue with fastcraft and NEID?
Did he changed anything again? Or do I have an old version of fastcraft without this fix?


Friday, July 29th 2016, 1:42am


Please update to 1.10.2. I need it for my server and own Minecraft cause with 70 mods it's painfull to play in server without Fastcraft


Friday, July 29th 2016, 4:52am

Nightreaver: Updating NEIDs should help there.

The 1.10 update is WIP, but a lot of effort as to be expected.


Friday, July 29th 2016, 10:33am

Hey Player,

I'm running the latest NEID

Still crashes :/


Saturday, August 6th 2016, 10:07am



i am going to be using your fastcraft mod in my modpack. Keep up the good work



Tree Cutter

  • "bluecrystal" is male

Posts: 1

Location: Lower Austria

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Sunday, August 14th 2016, 9:35pm

Entity Renderer

Hello player!

First I wanted to thank you for that really great mod of yours. I'm playing on MC-1.7.10 with 275 mods installed and fastcraft is really a huge improvement of performance with it's optimized renderers and geometry-logic. Dealing with 275 mods I would have a tiny "feature-request", more like a little favor of yours. The game crashes sometimes with a concurrent modification exception in the entity-renderer.

Spoiler Spoiler

Source code

    	at java.util.ArrayList$Itr.checkForComodification(
    	at java.util.ArrayList$
    	at fastcraft.HC.t(F:77)
    	at net.minecraft.client.renderer.EntityRenderer.func_78471_a(
    	at net.minecraft.client.renderer.EntityRenderer.func_78480_b(
    	at net.minecraft.client.Minecraft.func_71411_J(
    	at net.minecraft.client.Minecraft.func_99999_d(
    	at net.minecraft.client.main.Main.main(SourceFile:148)
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at sun.reflect.NativeMethodAccessorImpl.invoke(
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(
    	at java.lang.reflect.Method.invoke(
    	at net.minecraft.launchwrapper.Launch.launch(
    	at net.minecraft.launchwrapper.Launch.main(

So what I wanted to ask is, if you could please insert a try-catch clause around the entity-render-code that iterates over the entity-tracker Arraylist and in case of a CME just skip the rest of the list entirely and return as if nothing happened. (I would be really glad to have my entities just "flicker" for one display-frame instead of having to wait about 10 minutes (~2 minutes for the game to save the data + generate the crash report, ~6,5min to restart Minecraft and about 1-2 minutes until all hooks of the 275 mods have fired again to load the map after a mc-coldstart) each time this conflict occures. Sometimes I can play for weeks without a crash, but today there were 3 crashed in a row with that particular CME. As far as I can see from the code, the entity-renderer only accesses the Arraylist by reading (not writing), so it should (in my humble opinion) not do any bad to just skip the entity rendering for one frame - please correct me, if I'm wrong in that assumption.

Thank you very much in advance and please keep up the great work! :)


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