If you never received the mail then there are two options: either it's in spam or you unsubscribed from notifications for the project whether by accident or on purpose.

You're right, the time it took does speak for itself. It speaks of a dev commited to fulfilling its promises despite sinking probably 8 figures into the project and not selling enough to come close to breaking even, even if everyone who owned the game had paid full price for it. Most devs would have cut their substantial losses by this point but the fact they released the game on GoG after "so long" speaks of them doing all they can to get the rest of it out the door no matter how long it takes.

That's one side. Turn that around and it leaves customers waiting for a promised product forever. It might not even matter anymore when they get it. So you might say they were doing stuff totally ignoring customers demand. *shrug*

Anyhow, my quick reaction was right. Max Damage is no longer available for purchase here.