We wouldn't blame you if you didn't realise there were working computers in these amazing creations.
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Case modification, or case mods, can start with changes as simple as giving your computer case a new coat of paint -- or, as you'll see, get really complicated.
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SEE ALSO:Redditor Builds Portable Laptop-Sized Xbox 360 Mod。

Naturally, those exhibited at Computex, one of Taiwan's largest annual technology shows, did not hold back. 。

Naturally, those exhibited at Computex, one of Taiwan's largest annual technology shows, did not hold back. 。

Here are some of our favourites: 。

Donkey Kong。

Credit: YVETTE TAN/MASHABLE 。

Let's start off with one that needs no explanation.。

Build by modder Thermal Mike and Thermaltake's U.S. team, they actually sourced for original DK arcade logos for this Donkey Kong case. 。

Looks like it paid off -- the mod definitely has that old arcade feel. 。

Taipei 101 。

What better way to represent Taiwan than with one of its famous icons?

Behold the Taipei 101 case mod, of the city's tallest skyscraper which stands at a height of 500m.。Mashable Light SpeedWant more out-of-this world tech, space and science stories?Sign up for Mashable's weekly Light Speed newsletter.。By signing up you agree to our Terms of Use and Privacy Policy.。

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Credit: yvette tan/mashable 。

Modder Mike Petereyns said he was "struck by inspiration" the first time he saw the Taipei 101 and decided to make a case after it. 。

Rocket League。

Credit: yvette tan/mashable。 Who doesn't love 。Rocket League 。

?。 "I spent about 290 hours working on this case mod, but on average they take me around 100 to 400 hours," Australian Stephen Hoad who worked on this mod told 。Mashable。

Mashable。

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Hoad, who only started modding 18 months ago, now mods full-time for a living.。

Supercarrier。

The Taiwanese modder behind this crazily ambitious mod was actually inspired by the name of the motherboard, the ASRock Z270 Supercarrier.。

The Supercarrier took around three months to build -- though if we're honest it looks like it took a lot longer. 。

Just look at that attention to detail.。

Credit: YVETTE TAN/MASHABLE
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The Wheel of Star。 Seriously, need we say more? Just look at it.。Yep, it。

spins。

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The Wheel of Star, which is made by Modder Crow of Thailand, is by far the craziest thing we've seen. 。

We're told by a Cooler Master spokesperson that the PC case is fully functional, and equipped with a HDMI wireless transmitter, so it can still connect to devices -- despite being in that case.。

Credit: YVETTE TAN/MASHABLE
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Credit: YVETTE TAN/MASHABLE。

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This mod won first place in the Case Mod World Series, and its really not hard to see why.
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Stay tuned for more news from the Computex 2017 in Taipei, as we cover it from the showfloor.  。Featured Video For You。World travelers will love this suitcase that doubles as a scooter。