GTO Frequently Asked Questions

Ctrl+F can quickly find issues

Q: Where to download the integration pack?

A: Go to Releases to download GregTech.Odyssey-[version number].zip, see installation steps in GTO 0.6.0 Installation and Update Guide.

Q: Why can't the latest version of the integrated package start?

A: Requires Java25 to launch (supports Java 21 / 25 / 26, Java 25 recommended). You can download it from the group files or the official website. For the Prism launcher, you need to set it to skip the Java compatibility check.

Q: How to upgrade the integrated pack version?

A: After installing the latest version of the integration package, copy the following folders or files from the old version to the new version:

1. local (local cache)

2. saves (save files)

3. gtceu (ore vein markers)

4. options.txt (game settings)

5. xaero (map data)

6. resourcepacks (resource packs)

7. shaderpacks (shaders)

8. emi.json (EMI bookmarks)

Q: What should I do if I encounter a bug while playing or if I want to give suggestions?

A: Please go toGithub , fill in and submit an Issue according to the template. You can also directly enter /bug in-game to automatically upload logs and receive a feedback link.

Q: What should I do if the game is lagging?

A: The modpack does not include Spark built in; you need to add it to mods yourself. Enter the command: /spark profiler start, wait a while (1-2 minutes), then enter /spark profiler stop and wait for the analysis report. To only profile the startup phase, use /gtocorec spark start and /gtocorec spark stop.

Q: What to do if the game crashes?

A: Look in the crash-reports folder under the game root directory .minecraft, find the latest error file (if there is no such folder, go to the logs folder and find latest.log). You can analyze it with AI or send it to the group for help.

Q: How do I play the modpack?

A: Please read the task book carefully, make good use of EMI and Mcmod Encyclopedia to query content, and consult group friends if you encounter problems that cannot be solved.

Q: How do I do assembly line without a sample P2P? / How to use hypercube?

A: This pack is not compatible with Pattern P2P Tunnels. The Hypercube Generator is the replacement for P2P; you can think of it as the GT version of the Entangled Block. There are video tutorials in the group's featured messages.

Q: Can I privately add mods (e.g., Mek, Create)?

A: Yes, but please note: Do not provide feedback in the group for any issues arising from this, and do not discuss or show off related additions in the group.

Q: What difficulty should I choose?

A: Please see the different difficultiesEasy, Normal, and Expert Mode Features Guide — GTOdyssey

Q: Why can't I search for things in creative mode?

A: Due to an unfixable crash bug, the creative mode search function has been disabled. Please use EMI to find items.

Q: How do I claim chunks without the FTB map?

A: Press M to open the minimap, right-click a chunk and then click Claim. By default in this pack, the claimable range is 100 chunks on each of the X/Z axes (tip: you can hold right-click and drag to box-select multiple chunks).

Q: How can server owners and administrators bypass territory protection?

A: Territory admin permission command /oclaims admin-mode (Since OPAC 0.30, the prefixes are oclaims / opac / oparties; the old /openpac-claims is no longer available)

Q: Why is there no original infinite water? / How to obtain infinite water?

A: Disabling infinite water is a GregTech-specific setting. In the early game, you can obtain infinite water by building [Primitive Water Pump] and [Thermal Pump]; at the HV stage you can make an Infinite Water Cover, and after IV there are also the Infinite Water Tank and ME Infinite Water Cell.

Q: Why can't I activate the Nether portal?

A: Vanilla Nether portals do not generate. During the HV tier, first use the World Information Scanner in a superflat world to obtain Nether dimension data, then build a [Nether Reactor Core] and fill it with energy to travel to the Nether.

Q: How to enter the End?

A: Find twelve different eyes through exploration, of course you can also develop magic making.

Q: How to transfer items/fluids across dimensions?

A: Use the Wireless Item Transport Cover/Wireless Fluid Transport Cover. For cross-dimensional power transmission, use the IV-tier Wireless Grid Dimensional Relay.

Q: What to do if the silencer chamber is full of ash?

A: In the early game, you can only clear it by hand; after HV, you can make a Drone Control Center to automatically clear ash; the Air Purifier can reduce the probability of ash production (the basic version purifies 16 blocks and reduces the probability by 50%).

Q: Why do I keep having hunger/blindness/levitation buff?

A: Exposed to toxic substances.

Q: How did you get leukemia / how did you die from cancer / how did you float up?

A: Contact with hazardous substance, see detailsDiseases and Hazardous Substances.

Q: Why can't I edit the task?

A:How to enable FTB Quests edit mode — GTOdyssey

Q: Is there a void world? / How to go to a superflat world?

A: In the HV stage, use the [Void Teleporter] to access the Void World and the Superflat World: right-click obsidian to go to the Void, and right-click crying obsidian to go to the Superflat.

Q: What is the use of Overseer Cola/Machine God Possession?

A: After drinking, jumping on an operating single-block machine advances that machine's recipe progress; the Large Bottle of Supervisor Cola (Descent of the Machine God) affects the surrounding 5×5×5 area.

Q: How can I retrieve my exquisite backpack if I accidentally lost it?

A: /sbp list (i.e., /sophisticatedbackpacks list) lists information for all backpacks; /sbp give playerID uuid gives the player the backpack with the specified uuid.

Q: How does the flower medicine table automatically replenish water?

A: In mythological botany,Hundred Water Lotus.

Q: How does the digital mining machine filter minerals?

A: After setting the item filter to a specific mineral, place it into the specific item slot at the top right of the mining machine.

Q: How to modify the block claiming limit/strong loading block limit?

A: 1. In-game modification method

1. /opac player-config set playerConfig.claims.bonusChunkClaims 10000 (Set the claim limit to 10000)

2. /opac player-config set playerConfig.claims.bonusChunkForceloads 10000 (Set the forced chunk load limit to 10000)

• 2. External modification method

• In saves/“存档名”/serverconfig/openpartiesandclaims-server.toml, find the following configuration

1. maxPlayerClaimForceloads = xxx (Maximum number of forced loaded claims)

2. maxPlayerClaims = xxx (Maximum number of claims)

• Just modify xxx

Q: Why doesn't the catalyst placed in the shared item library of the template assembly take effect?

A: Please use [ME catalyst template assembly]

Q: Why can't the AE terminal be opened?

A: If you are using AE modern textures, please uninstall them or switch to the fixed version in the group files; only the modpack's optional AE-Dark-UI / AE-Light-UI are recommended.

Q: How to enter the Nether dimension?

A: You need to wear a full set of Warden armor (or the Warden-upgraded Quark High-Tech four-piece set), then hold the Heart of the Abyss and right-click the Nether portal (remember to first break the vines attached to the portal).

Q: How to enter Alfheim?

A: Drink the mead of poetry, carry 12 relics, and pass through the main world's elven gate.

Q: How to obtain the first crying obsidian?

A: They can be found in some dungeon structures such as the Foundry (which can be located using the Explorer's Compass), or by cutting an onion on obsidian (5% chance).

Q: Why can't the server use the spell turret?

A: Please uninstall the login plugin you installed yourself.