Apex City is out now on iOS, Android, Web. This is the story of how it got made.
What it is

Apex City is a city builder with a real simulation underneath. Every home has residents who need power, water, schools and a safe street. Lay roads, zone districts, build utilities and services, and watch traffic, blackouts and crime emerge from your layout rather than from random events. Fix the water shortage you created, then redesign the district that caused it.
Transport is the endgame: open an airport, a seaport and a rail network, add bus and metro lines and a trucking fleet, feed sawmills, refineries and factories into cargo routes, and ship goods to other mayors on player-to-player routes.
Play together in alliances of up to 50 with weekly events and seasons. Leaderboards reward cooperation; there is no sabotage and no raiding. Everything is earnable with coins, there are no loot boxes, and there is no advertising SDK at all. Your city keeps running on a plane or in a lift and syncs the moment you reconnect.
Why it exists
Brownouts, traffic jams and crime are outcomes of your plan, not luck. And it all runs offline, with no ads and no loot boxes, on iPhone, iPad, Android and the web.
What went into it
- A real simulation underneath. Blackouts, jams and crime come from your layout, not random events
- Transport is the endgame. Airport, seaport, rail, metro, buses and a trucking fleet
- Alliances of up to 50 players, weekly events and seasons, no sabotage and no raiding
- Plays fully offline and syncs when you reconnect
- Fair by design. No ads, no loot boxes, everything earnable with coins
What's next
It's live at https://apexcity.reallexi.io.
Questions about how any of it was built are welcome in the comments.

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