IQ Under Construction

2,000,000 downloads! The final levels are HELL.

PoseidonPlay

The goal of creating the hardest game in the world has officially been achieved.

As the developer, I’ve personally beaten every level. It’s insanely hard, but absolutely doable. There are 18 levels in total, and here’s some friendly advice: don’t even bother with levels 16, 17, and 18. Seriously. It took me over a week of pure, uninterrupted time to beat each one. Save your nerves.

A huge thank you for your feedback (I read it all!) and an absolutely massive thank you for 2,000,000 downloads! You guys are crazy for playing this. I’m glad you’re into this hardcore stuff.

This announcement was originally published by PoseidonPlay on Steam on Jun 18, 2026.

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IQ Under Construction

$2.99arcade · casual

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