> How does the FE prove to the backend that you actually killed the monsters? Doom is fully deterministic so you could record the players inputs and replay the

> How does the FE prove to the backend that you actually killed the monsters? Doom is fully deterministic so you could record the players inputs and replay them on the server to verify that the kills actually happened. Some games actually do that to make cheating their online leaderboards more difficult, because it's a lot more work to fake a record-setting replay than it is to just submit a fake score, and even if you do fake a working replay it might not stand up to human review.