出以下，所有key都只有一份的：
F1 2018 5r
9 Clues: The Secret of Serpent Creek 3.5r
9 Clues 2: The Ward 3.5r
Abyss: The Wraiths of Eden 3.5r
Dark Arcana: The Carnival 3.5r
SteamWorld Dig 4.5r
Scrap Garden 5r
Geometric Sniper 4r
Deadly Premonition: The Director's Cut 5r
地牢清洁工 | Planet Alcatraz 3r
Holy Potatoes! What the Hell?! 2r
LEAVES The Return 2r
LEAVES The Journey 2r
Murderous Pursuits 1r
下面的每买2个-0.5r，打包6r：
Winter Snow | 冬雪+Winter Snow | 冬雪 - Extra 1.5r
NB Desktop 1r
Shoot Covid-19 | 消灭新冠肺炎 1r
Spot The Differences 2020 | 大家来找茬 2020 1r
同居指南 | Cohabitation Guide 1r
单词训练营 | Word Training Camp 1r
景行 | Encourage 1r
逗国科举 | Douguo Keju 1r