Extended Mega Ultimate Voltage (UXV)

Welcome to Extended Mega Ultimate Voltage (UXV) the thirteenth and final tier in GregTech: New Horizons. This tier begins with the production of Magnetohydrodynamically Constrained Star Matter (MHDCSM) and ends with a Stargate. In UXV, expect to spam even more machines and drastically increase power production to support laser energy hatches.

The end feels near after finally reaching a 7/7/7 EOH and holding universium for the first time. Unfortunately, UXV components and a 9/9/9 EOH are still a long ways off. Tipler and Gallifreyan EOH parts are crafted with MHDCSM bolts which require a new material, eternity, and many universium nanites.

Eternity is actually very cheap to manufacture in the QFT, but it has a steep up-front cost. The recipe requires the Temporal Harmonizer Catalyst and a Chronic Singularity which take 20,736L of universium combined. Once complete, however, the catalyst lasts forever and the player no longer needs universium to craft additional Chronic Singularities. Note that eternity only has a 25% chance of being produced and should absolutely be focused with fermium and neptunium plasma to nearly triple the probability of success to 72%. Good luck.

The first available recipe for MHDCSM is also very expensive and the player should switch to the cheaper version using eternity nanites as soon as possible. It reduces the universium cost by 50% and does not require any BDM or WDM. Unfortunately, the cheaper recipe is rated at MAX voltage which means the player needs a 4A UXV energy hatch to overclock their EIC. That is another up-front cost totaling 21,888L of universium, and needs the END upgrade in the Godforge. See the table below for a quick cost breakdown.

In order to obtain enough universium for just these three components, a player needs their 7/7/7 EOH to succeed 53 times. On average, that takes 135 iterations or 111.2 hours assuming no overclocks, 70% yield, 39.5% probability of success, and a recipe length of 2,965 seconds. It is highly recommended to build a second or even third 7/7/7 EOH to cut this time down significantly. Also try using antimatter for power to overclock the EOH as much as possible.

All UXV components require Magmatter, which is unlocked by the END upgrade of the Forge of the Gods. The production of Magmatter is relatively cheap, but the final two upgrades are expensive, requiring (among other components) 22 Mega Ultimate Batteries.

Players may proceed towards a 9/9/9 EOH once they have access to eternity. Recall that compression field generators offer the largest increase to star matter production and should be prioritized first, then time dilation field generators, and finally stabilisation field generators. Additional 9/9/9 EOHs are much easier after the first one. Don't forget to replace any UMV input hatches with humongous input hatches and use the T10 Deep Dark planet recipe because that provides the most resources out of all the planets.

The player can then begin splitting their EOHs between production and power. Expect only 3-4 EOHs for producing raw stellar plasma, WDM, BDM, and universium. This is because production EOHs use astral arrays (AA) to run parallels within the same machine. Ensure that there is enough power and raw stellar plasma to support even a single AA before investing in one, but know that they are extremely powerful and quickly ease the pain of producing universium. The first one, for example, costs the equivalent of one 9/9/9 EOH but acts as seven! For universium, leave the EOH at 9/8/9 to keep stellar plasma production net positive.

An EOH running T0 Overworld with one or two AAs is very effective at mass producing raw stellar plasma. This is a reasonable time to switch to excited dimensionally transcendent stellar catalyst exclusively for all DTPF recipes that allow it. Not only does that increase the speed and efficiency of producing expensive materials such as superconductors and hypogen, but it drastically reduces the need for plasma (especially when combined with the immense amount of plasma produced by EOHs). However, this consumes quite a lot of power which may not be fully sustainable right-away.

An EOH running T10 Deep Dark with many AAs is very effective at mass producing spacetime. It is safe to turn off any DTPFs producing it--they simply cannot compete with the speed or efficiency of the EOH. For reference, a single failed recipe outputs 7.3M (L) of spacetime. This is also a reasonable time to switch over to spacetime for superconductor wire recipes if that is still a bottleneck for any PrASS.

Much like the previous tiers, the player should acquire CoAL casings before mass producing UXV components. The 25% discount saves the player a massive amount of universium, but comes with yet another steep up-front cost. A full set of 43 UXV CoAL casings cost 27.5M (L) of universium, 161k (L) of BDM, and 265M (L) of raw stellar plasma, among other things.

After acquiring UXV CoAL casings, the player may be interested in wireless laser energy hatches for multiblocks including but not limited to the CoAL, QFT, DTPF, Nano Forge, PCB Factory, Advanced Assembly Line, Exothermic Hearth, Endothermic Fridge, Mega Alloy Blast Smelter, Space Elevator, and Research Station. The ability to transfer more than 64A wirelessly means LSCs are no longer necessary to have all around your base and neither are the capacitors within them.

The player may also be interested in Space Assembler Module MK-IIIs which unlock the artificial universe ME storage cell and the ME fluid artificial universe storage cell. These have the same capacity as their digital singularity equivalents, but allow more than one type. The Space Assembler Module MK-IIIs also help significantly with the production of optical circuit components because they run at UXV with 64 parallels which is much faster than MK-IIs running at UIV with 16 parallels.

Lastly, make the final upgrade to the Forge of the Gods which includes a third ring for four additional module slots and allows the player to follow all three split paths of the upgrade tree.

This is it. The only real thing left to do is go forth and craft a Stargate. It will not be easy and may take days, if not weeks, to complete. Before getting started, delete all redundant infrastructure to save as much TPS as possible and switch to the most efficient recipes (ie. UMV superconductors for opticals) where possible.

The full list of required materials is extensive, but know that one stargate costs 1.21B (L) of universium, 35.6B (L) of spacetime, 9.16B (L) of hypogen, 160B (L) of infinity, 699M (L) of Magmatter, 464M transcendent metal, 1.16M quantum circuits, and 3.46M pico circuits. It is highly recommended to pre-craft a few components such as the quantum/pico circuits (or go outside and touch some grass) while waiting on the universium. Don't forget to take screenshots of your base and post them in the #screenshot-brag channel on the Discord!

If not done so already, the player should absolutely automate their EOHs. Visit the EOH wiki page for an in-depth walkthrough on that process and everything else regarding the multiblock. Note that the humongous input hatch allows the player to use the shortcut method for filling power EOHs which heavily simplifies their automation and reduces idle time.

The Stargate requires 512 Graviton Shards, which can be ejected from the Godforge after completing its final upgrade, END. After unlocking Inversion by reaching level 7 on each milestone, it becomes possible to scale the milestones infinitely to produce enough shards. Each of the four milestones can be pushed in order to rapidly gain shards, although it is more efficient to prioritize one or two milestones due to the fact that the number of shards gained scales quadratically, while the requirements only scale linearly. Charge can be pushed by using the unlimited maximum voltage unlocked by the TBF upgrade, Conversion by running a cheap recipe such as steel and re-macerating it repeatedly, Catalyst by using MHDCSM with a high fuel factor, and Composition by placing more Heliofusion Exoticizers in Magmatter mode.

TPS is likely a massive issue at this point in the game. No one wants to run their game at half-speed, especially while waiting tens of hours for enough universium to progress. Try using Spark, Lag Goggles, or another performance profiler to identify anything that may be causing unnecessary performance issues.