Great question! We chose to make the order explicit and important - for example if we have two battling units, one with "unit reduces counter attack strength by

Great question! We chose to make the order explicit and important - for example if we have two battling units, one with "unit reduces counter attack strength by 50%" and one with "unit counter attacks with 200% of original attack strength", order is very important. So the game designer has to add an 'order' value to every object in the game. So far the favourite library is Fast-JSON-Patch[1]. The method we're trying is to build up a sequence of patches - so every object in the game can add a patch to the queue, and then once the system is ready, it can apply the patches and validate the result. This particluar library allows the code to directly manipulate the object, and generate a patch from the changes made - so it keeps the code simple and easy to understand.