This is probably as close to Factorio on a mobile device as you're gonna get. The ad model is also super respectful - you can skip all ads easily, they are infrequent and you can pay to remove all ads (which I generally prefer to do once I've figured out that I like a game). Will update with more details as I play (looooots) more, but I'm loving it so far... :)Update: after playing some more there's one recommendation that I think would improve the game hugely - the Supplier should be able to output ANY item. Currently, all your builds sure separate and self-contained, so your factory is just a bunch of disconnected chunks that don't interact with each other at all. Being able to effectively move items between your builds would make things a lot more interesting. It would just need some kind of efficiency tradeoff between building centrally vs building locally.

Having a game about building a factory and filling contracts with the products you make, not having a logistics page is a major flaw I have no idea how much of anything I produce, no idea how quickly the feeders bring out raw materials no idea how the total resource draw of all my machines like I’m not going to try and mentally keep up with what’s producing how much from the little info I do have all while just sitting there waiting for things to complete as another person said the game moves at a snails pace pretty much the entire time, you get to a point that the auto accept brings in enough money you can just turn off selling some resources to finish research but again trying to micro manage how much I’m going to have or trying to figure out if you’ll have enough time to produce the required material for a contract without having any idea the actual production time besides that it takes 2.8 seconds each production but trying to figure out how many 2.8 second completions can be done for this 1 minute 30 second timer is just far removed from factory builder I wanted when I downloaded, the building is slightly finnicky with the directional it should stick with each piece like robot arm are facing down so when you switch back to arms it should already be facing down instead of the universal everything goes this way then switch and everything goes that way, the building types and resources are realistic and interesting the way to make money through activating or deactivating the sales of individual resources feels unique and enjoyable, overall strong physique well built skeleton missing some muscles and finer motor control add that and the game will be phenomenal. 3.5/5

First let me start by saying this game is awesome and I love it for what it is, even if there are ads. I understand that life is life and you need money. The only this that I have found to profoundly take away from the experience of playing such a wonderful is that there is no sound for anything. There are only sounds for the menus and buttons you press with a finger. There’s no sounds for the robots, the furnace or pretty much anything else in the game. That’s all though, I love the game

This game is such a hidden gem, its genuinely really well made and something that really scratches my itch for a good factory game. And the way its made allows for so many different strategies and ways to build. Seriously give the game a try! But there is a con id like to note. The game needs more updates and maybe even a community modding function like Mindustry. If it gets that then I have no doubt it will get way more love from new curious players.