Abnormal 1999: Sector 49 is an extremely difficult wasteland puzzle game, the fifth installment in the Abnormal series. To celebrate the game's launch, a special 48-hour speedrun challenge has been organized for puzzle enthusiasts. The rules and prizes are as follows: Obtain all 76 achievements, and the prize is: A game free coupon red envelope + a full set of keys for the entire Abnormal series (including 5 titles, worth 90 yuan). Complete the game but do not obtain all 76 achievements, and the prize is: A full set of keys for the Lin Shanhai Detective Case series (including 5 titles worth 30 yuan). To participate in the 48-hour speedrun challenge, please join the group 190122625.