Game engine Unity has faced backlash after announcing that it will charge developers a fee for each user installation of their games. Developers have criticized the policy change, which will come into effect on 1 January 2023, for its potential to harm game studios. Unity has responded to concerns, stating that developers will only be charged once if a user deletes and reinstalls a game on the same machine, but will be charged for installations on different devices. Developers have also criticized the lack of transparency regarding Unity's installation data.