Did you PM Fivestar4everMVP to know he is not the one that locked the thread before asking this question?
He doesn't need to PM anyone, he could just place his cursor on the padlock emoji, and the person who locked it between the OP and the moderators will appear. But this happens on the laptop, I've not tried it on the mobile phone.
Notwithstanding, I rushed to the thread from here, it's good that it is unlocked now, and I've even posted there thereafter.
But even if you sent him PM and he told you that he did not lock the thread, that does not means that a thread that is 5 pages long should not be locked. People are enjoying now, unlike before that long threads were often locked on the gambling board. It might even be moved to off-topic in the past.
I think the reason it was initially locked is because of the D€ath attached to the game.