Odd, I've never been in a scenario where I have no more units. Is it easy to determine that from the commands.txt file? Or you have to run through the simulation to figure it out? Does the commands.txt you looked at start with this? start {"settings":{"PlayerData":[{"Name":"Ptolemy Eurgetes","AI":"petra","AIDiff":2,"Civ":"ptol","Team":1},{"Name":"Player 2","AI":"","AIDiff":2,"Civ":"rome","Team":0},{"Name":"Acharya Bhadrabahu","AI":"petra","AIDiff":2,"Civ":"maur","Team":1}], Notice that I'm not the first player. The first player is petra. If I look at commands.txt the last command was building a tower by me, with many units. cmd 2 {"type":"construct","template":"structures/rome_defense_tower","x":432.3590393066406,"z":604.5962524414062,"angle":2.356194490192345,"actorSeed":50244,"entities":[16711,16402,16373,16367,16359,16204,16157,16156,15591,15430,15395,15776,16360,16161,16051],"autorepair":true,"autocontinue":true,"queued":false} Hard to fathom how I can do that and all my units die quickly later. I had close to 300 units at the time.