The ever-evolving world of custom PCs is always exploding with creativity, with builders pushing the boundaries of design and functionality all the time. I've done plenty of experiments with custom builds in the past, but this time I was determined to put one together after looking at my colleague's incredibly cool PC, which he built using an old Mac Pro case. So while I was looking for some inspiration for my build, I came across a bunch of really cool PCs, and they're simply too good to not be shared with those who might be interested in custom work. From ingenious ideas that hide the PC for a clean desk space to Doom Eternal's BFG-inspired PC that's sure to strike fear into the hearts of demons and gamers alike, here are four really amazing creations that redefine what a custom PC can be.

4 The "Invisible" PC

Watch an Intel Core i9-13900K and an RTX 4090 get tucked away

My never ending quest to find ways to hide cables and clear my desk clutter made me stumble upon a YoTube video showcasing an "ENDGAME invisible PC" that hides itself in the desk. It was made by Matthew Perks of the DIY projects YouTube channel, who has previously brought us incredible projects like the world's slimmest PS5, and more. The new "ENDGAME invisible PC" featured in the video is essentially a fully built PC that disappears onto the desktop, complete with the monitor. That's right, it's cleverly integrated into the desktop in such a way that it can be tucked away when not in use. The video over at the DIY projects channel meticulously documents the entire build, highlighting how the PC was conceptualized and built into the Flexispot E7 Pro standing desk that we reviewed here at XDA not too long ago.

A lot of work went into putting together a build involving an Intel Core i9-13900K and an RTX 4090 graphics card, both of which can be a nightmare to cool. Due to the space constraints, the "invisible" PC uses two HDPlex 500W GaN power supplies, and the entire thing was cooled using a massive collection of heatsinks and 140mm Corsair fans. Oh, the build also uses a 45-inch Corsair Xeneon Flex ultrawide bendable OLED monitor, which was stripped down to its PCB and the OLED panel to be able to fit inside the custom desk. Words can't describe how incredibly cool this PC is, so you have to watch the video that's embedded below.

3 A PC with a coffee maker inside

Ah, the perfect harmony

Boiling hot coffee inside a high-end gaming PC case sounds like the perfect recipe for disaster. Or so I thought until I watched a YouTuber putting together a fully custom PC with a coffee maker inside it. It's honestly the perfect harmony between two things I never thought could come together in a way they did inside the Corsair Obsidian 1000D PC case. It wasn't made to fit a coffee maker along with the components, as you'd imagine, so I can confirm that a lot of cutting and hammering happened in the process of make the case fit everything elegantly.

If you watch the video that's embedded below, then you'll notice that the PC uses an Intel Core i7-14700K, an ASUS ROG Strix Z790-F motherboard, an MSI GeForce graphics card with no mention of the exact model. The CPU was being cooled using a Noctua NH-U12A, and there are a bunch of other case fans to move hot air outside the case. Cramming all these high-end components while also fitting a coffee machine in the case was quite the task, and even a massive case like the Obsidian 1000D felt tiny for it. The build was finished off with the use of wooden sticks for some nice aesthetics, and the finished product gave me a massive fear of missing out.

2 A Cyberpunk-themed PC

With lots of neon lights

​​​​

Another one of Nerdforge's PC builds that's worth adding to this list is this neon city-themed PC. No, seriously, just look at this thing. It's one of the best gaming PC dioramas ever made, and it was built using painted foam, takeaway food containers, tin foil, and more. What truly brings this build together, in my opinion, are the LED-lit windows and signage, both of which contributed a lot towards the 600 hours it took to finish the entire thing. Most of the time was spent building the exterior of the case, but the components inside the case are also quite powerful and nothing to frown upon.

The PC components were put together by the folks over at Linus Tech Tips, and it's a completely water-cooled PC, using massive water blocks from EK. It's safe to say that it's got a lot of RGB lighting, cables, coolant, and more. It was a fun project overall, and it's worth checking out if you are a fan of Cyberpunk 2077 game or just its aesthetics, in general.

1 Doom Eternal’s BFG

In the form of a PC

Next up on the list is a custom build put together by Mark Celica of Mark's Fabrication, who is known for some of the best custom PCs out there. This particular build is inspired by Doom Eternal's BFG, one of the game's most iconic weapons. It's not necessarily a new build, so it only features an RTX 3080 GPU, but it's plenty powerful and looks absolutely amazing. The case, which features a turret-style base, has laser lighting effects for additional cool points, and all its components are are housed inside the barrel of the gun. The PC components used for this build may not be as powerful as the ones you may find inside modern custom builds, but it's still very capable, and it probably looks better than pretty much any other custom PC that you may have seen.

No shortage of creative PC builds out there

It's never a bad time to drool over some amazing PC builds and secretly wish you had them on your desk. The custom PCs featured on this particular list are completely over the top and hard to come by, but we did get to see some custom PC cases at Computex 2024 show floor this year that are relatively easy to get your hands on. They're all drop-dead gorgeous and are made with PC cases that are readily available to purchase on the market via various retailers.