Top 10 Games That Require Immense Intelligence

While a lot of games are simple and easy to understand, that's not the case with these games! They're hard, because you need to put a lot of intelligence into them!
The Top Ten
1 Dwarf Fortress
2 The Witness
3 Portal 2

This is because it is a puzzle game where its difficulty is based on logic and problem solving not nessacarily exucution.

I love this game! It's challenging, but that's what makes it so fun!

#WheresPortal3? where's portal 3? portal can't end at 2, 2 left behind clues for a continuation

4 Spacechem

This sounds like fun.

5 Dark Souls
6 The Impossible Quiz

You need to have the most insane logic to get through this game the first try.

7 Hacknet
8 The Talos Principle
9 Kerbal Space Program

You need to know about orbital mechanics, delta v and the like

10 UFO: Enemy Unknown
The Contenders
11 FTL: Faster Than Light
12 Limbo
13 Frozen Synapse
14 Eve Online
15 Universe Sandbox

Interesting! I gotta check this one out.

16 The Incredible Machine
17 Xenogears
18 Professor Layton and the Unwound Future
19 F-Zero GX
20 The Hitchhiker's Guide to the Galaxy
21 Tis-100
22 Brother in Arms
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