Steam

Complex SKY

Also known as Complex SKY, complex sky, complex-sky

COMPLEX SKY is a futuristic city building game with a unique architecture system - build the city both ways, up and down! The world is devastated by pollution, and it’s up to you to create a fully self-sustainable city in the skies, and populate it with human settlers.

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Last update

20 May 2026

Original sources

Latest update

StorePublished 17 Jul 2024

Status Update + Check out the IRONHIVE Demo!

Hiya, SkAI here! Long time no see, huh? Well I’ve been keeping busy! COMPLEX SKY is gradually expanding, so I hope you will get to see the fruits of my labor very soon! Right now the bulk of the efforts is focused on ex…

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Update history

Browse past updates and patch notes for this game.

20updates

June 2024
Simple Sky Vol. 1: Getting StartedHeya! SkAI here! Y’know, I’ve been thinking here. I’ve been running my mouth about my latest genius inventions and big ideas for a while, haven’t I? But you are just a human! You might not even know how to stack bricks,…Event3 changesBalanceUI/audio06 Jun 2024
April 2024
Hey, everyone! SkAI here! I’m back with another entry of SkAI's Blueprints, where we examine all the various architectural, sci-fi, and visual styles and themes that share a vibe with COMPLEX SKY or even inpsired it! An…3 changesUI/audioBalancePatch notes04 Apr 2024
March 2024
Hey, everyone! Momo here. You might’ve noticed the game’s demo is not available for the time being. This year I am putting my all into making this game the best it could possibly be, so please look forward to future upd…3 changesGameplayMapsPatch notes04 Mar 2024
January 2024
Hello, architects of the future! SkAI here! Whew, what a year, am I right? Everyone’s been having their ups and downs, some sunny days and some cloudy days, we built and destroyed, burned old bridges and paved new roads…9 changesGameplayUI/audioPatch notes31 Jan 2024
November 2023
Hello, architects of the future! SkAI here! You know, I feel like I’ve been rambling about buildings a lot lately. And why wouldn’t I? They’re so tall, so shiny, so… multipurpose! But where would those buildings be if t…3 changesBalanceUI/audioPatch notes27 Nov 2023
October 2023
Hello, architects of the future! For a while now we’ve been discussing how to build things. But what exactly are we building? The city of COMPLEX SKY employs a minimalistic visual style with a touch of sci-fi. These low…2 changesGameplayServerPatch notes06 Oct 2023
September 2023
Update demo version 643Build 643 Demo Content - Add new quests for early game - Add new technologies - Add item mover building - Add production inspector building Changed - Smart construction feature now required technology to use - Rice Farm…Announcement1 changeWorkshop15 Sept 2023
August 2023
I believe most of you have played the Complex SKY public demo, and thanks to your feedback, I’ve been able to look at my game from a different angle. For the past few months I’ve been fixing bugs, experimenting, and enh…6 changesGameplayCompatibilityStore14 Aug 2023
May 2023
From a Factorio modder to a solo game developer 👀Hey! I’m Momosundeass (or Momo for short). I’m the solo developer of Complex SKY… and ex-Factorio modder In today’s devlog, I want to dive into that last part a little because a lot of inspiration behind Complex SKY and…Announcement3 changesGameplay19 May 2023
January 2023
Complex SKY Demo is AVAILABLE NOW!Hello, future builders! We are happy to announce that Complex Sky is featured as part of Steam’s Base Builder Fest starting January 23 and through January 30! You can learn more about the event by visiting this page. Ho…Event7 changesGameplayUI/audio23 Jan 2023
August 2022
Complex SKY at The Nightmarket Festival 2022Hello, everyone! We're happy to announce that Complex SKY will be a part of The Nightmarket Festival 2022! The Nightmarket Festival 2022 is showcasing around 100 discounted games, and offering free demos for dozens of h…Event2 changesStore04 Aug 2022

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