Common Questions
First, please look at the Knowledgebase. It often covers things in more depth than here.
In addition, please check the pinned messages in the #support channel on our Discord server to see if your problem is mentioned there. We frequently cover temporary issues that apply only to select versions of packs in the pinned messages there.

General FAQ

Q: Which modpack should I play? A: If you're unsure which Valhelsia pack to play, try Valhelsia 3 first. It has the broadest range of available mods and has long term support, even as newer packs are being developed. It also has decent performance on most computers (if following the tips from the Performance Tweaks page).
Q: I get a message about insufficient allocated RAM, or the game has performance issues, how do I fix this? A: The most common reason for the pack taking a long time to load in or create a new world is that inadequate memory is allocated. You can see the minimum memory requirement on the CurseForge page for the pack you're using. See Allocating Memory for instructions on how to adjust the amount of memory allocated to Java.
Q: Open to LAN isn't working, how can I get it to work? A: In general, open to LAN is not a well supported feature in modded minecraft. Most mod developers seemingly don't test it, and it is otherwise quite problematic. While it may work in some modpacks and at some times, it can break at any time with any mod change in any update. Therefore we're unable to support it as a multiplayer option. As an alternative, you can run a server locally (free), on a cloud/virtual server (free option), or via a paid hosting service. BisectHosting is Valhelsia's official hosting partner. Using the promo code "Valhelsia" to get 25% off your first month as a new client for any of their gaming servers.
Q: I'm trying to run a server but it crashes when The Conjurer is being loaded, how do I fix this? A: You need to use Java 8, 64-bit to run a modded Minecraft server in Minecraft 1.16 or earlier. You can download it from here: [1] - select Temurin 8. For Minecraft 1.17 or later, select Temurin 17. Note that most modern Linux systems include OpenJDK by default but may not necessarily have the correct version. Type java --version in a Terminal to check. Please also see the Server Setup guide as it contains more information.
Q: How do I get my server listed in #servers channel on the Valhelsia Discord server? A: Fill in this form with the requested information.
Please note: We may take a little while to list your server. We have limited staff and time available. Please be patient. In the mean time, you are welcome to mention your server in the Tavern channel for the pack, but do not abuse this. Finally, many people also choose to advertise their Valhelsia servers on Reddit here: (which, despite the name, isn't just for FTB servers).

Advanced Users FAQ

Note: This FAQ is intended for advanced users only who already know their way around Minecraft mod packs and are familiar with adjusting launcher settings.
Q: Are there any JVM parameters that can help pack performance? A: These parameters improve the way Java handles memory and are selected with Minecraft specifically in mind. Please note that these are intended for use with Forge modpacks using Java 8. These will likely not work as well for Minecraft 1.17 which uses Java 16.
-XX:+UseG1GC -Dsun.rmi.dgc.server.gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
These were obtained from the excellent Reddit post by CPW here: [2] While these arguments are fairly old now (the post is from 2016), they still work very well in recent versions of Minecraft since Minecraft still targets Java 8 (prior to Minecraft 1.17, which uses Java 16). The main change over the years is that memory usage has continued to increase, mainly due to changes to vanilla Minecraft but also because of the number of mods that many packs now include.

Gameplay FAQ

Q: Does Valhelsia 3 have Vein Miner or Ore Excavation? A: No, but there are tools available with vein mining options, such as the Meka-Tool from Mekanism. For tree felling, there is the Terra Truncator from Botania and the Buzzsaw from Immersive Engineering.
There are also many tools with AoE (area of effect) capabilities, such as the following:
  • Cthonic Extractor (Tetra)
  • Terra Shatterer (Botania)
  • Infinity Drill (Industrial Foregoing)
  • Mining Drill (Immersive Engineering)
  • Excavating Enchant (Ensorcellation - can be applied to any pickaxe)
This isn't an exhaustive list by any means - you'll often discover more useful tools while progressing through various mods.
Q: Are there any Builder's Wands in Valhelsia 3? A: Yes. The Building Gadget (from the Building Gadgets mod) as well as the Formation Wand from Astral Sorcery.
Q: Are there any Chunk Loaders in Valhelsia 3? A: Yes, Valhelsia 3 includes the Chunk Loaders mod.
Q: Can you move spawners in Valhelsia 3? And how? A: There are several methods: (1) You can pick up a spawner with both of your hands empty by crouching and right-clicking, (2) by using a cardboard box from Mekanism (requires sawdust), or (3) by using a pickaxe enchanted with Silk Touch. There are other methods but these are the easiest.
Q: Can you store Experience (XP) in Valhelsia 3? A: Yes.
One method is via the Supplementaries mod - you can shift-right-click with a Glass Bottle on an Enchanting Table to convert some XP and Health into a Bottle o' Enchanting. You can use Bottles o' Enchanting on a Jar (also from the Supplementaries mod) to store it for later use, and can extract it via the Faucet or Glass Bottles.
Another method is via the Tome of Peritia from Blood Magic. Instructions for how to use it can be found in the Sanguine Scientiem (Blood Magic's Instruction Manual).
Industrial Foregoing also provides several machines that use Essence instead of XP to work with enchantments. See Industrial Foregoing's Manual (included in the starting Akashic Tome) for information on these machines.