Barth wanted to develop a game that has the same flavor of mechanics of SpaceChem without making a direct sequel, and turned back to the original idea of Manufactoid to build on. Though Barth did not feel this game was very good, it would help set up the mechanics of other games he developed, including the popular SpaceChem, which has the player developing manipulators to create chemical molecules. Infinifactory is considered by Zachtronic's lead developer Zach Barth as a reworking of his first game, Manufactoid, in three dimensions. Players cannot submit a puzzle to the Workshop until they can build their own factory that successfully solves the puzzle, assuring that the puzzle is solvable. The game includes support for Steam Workshop, which allows users to create their own puzzle challenges to share with other players once they have completed the game's story mode. The scores for each criterion are presented on a histogram of all players worldwide, encouraging the player to improve and optimize solutions to already-completed puzzles. The player's solution is scored on three criteria: footprint (the total floor space enclosed by the assembly line), cycles (the time taken between starting the assembly line and the requirements being met) and blocks (the number of non-platform type blocks used). Once the player has constructed an assembly line that successfully meets the delivery requirements, they can to move on to the next puzzle. The player can start the factory at any time, checking for faults and other issues should the process fail, including pausing the line to track down specific problems. The player may also be constrained by pre-set objects that may help or hinder their assembly line construction and cannot be removed. The player's view is from a first-person perspective and can be freely moved about the puzzle's landscape, including vertically by using a jetpack. This construction process is similar to other block-building games like Minecraft, though there are no limits on the number of blocks that can be placed. The player has an unlimited amount of time to set up the various components that make up the assembly line, including conveyor belts, welders to attach pieces to each other, and sensors to trigger devices like pushers.

Within each puzzle, the player is tasked to deliver a number of objects, constructed from one or more types of cube, to one or more delivery points by directing and assembling the individual cubes from their spawning point. Additional chapters have since been added during the game's time in Early Access, adding in new block types and furthering the story of the abductees' escape attempts.

By successfully completing all the puzzles, the player's character is rescued from the alien race by other abductees to a hidden base on the alien homeworld, and begins to work with the other abductees to find a way to escape the planet and return home. Completing a specified quota of puzzles on a world lets the player advance to the next one, as well as advancing the story. The game is divided into 6 worlds with several puzzles per world. The player takes the role of a human that is abducted by an alien race and is put to work to help the aliens construct equipment the character does not appear to be the first one that has been taken for this purpose as throughout the levels are the corpses of other abducted humans, which the player can find and listen to their last audio log. Infinifactory is a puzzle game, structured as several sets of puzzles based on various tasks. The game combines elements of Zachtronics' previous SpaceChem and Infiniminer, with the assembly lines being built from blocks in a three-dimensional space. In the game, the player takes the role of a human abducted by aliens and forced to construct assembly lines to create certain objects for apparently-nefarious purposes.

The game was later released on PlayStation 4 in December 2015. Infinifactory is a puzzle video game developed and published by Zachtronics, initially released on Microsoft Windows, OS X, and Linux on June 30, 2015.

Making counters in infinifactory