现在Steam点数商店可用500点数换取个人档案背景，前提是帐号中拥有该游戏(少数例外)
有些免费制游戏(比如MMO)也有提供个人档案背景，这样不用花钱买游戏即可换取背景
我整理的是免费游戏中美少女向的背景，这种市集会卖贵一点，少数便宜的我会再注明
要注意的是，部分免费线上游戏锁台湾区，商店页不能看，但有取巧办法让游戏绑定帐号
6/29 新增一组Age of Magic CCG - Viv Windwalker
7/1 注意兑换规则已修改，现在游戏时数要满2小时才能兑换背景!只好用挂卡程式了...
(1).锁区游戏：
*绕过商店页直接绑定到帐号步骤：
进入该游戏的SteamDB网页
→点右上角Install绿色按钮
→自动开启Steam程式并跳出一个游戏下载视窗，另一种情况是写无法在该地区执行游戏，
关掉视窗即可，不用真的下载游戏
→这样游戏就自动绑定到帐号了，点数商店可开始兑换
https://i.imgur.com/09NJjm8.png
(到帐户详细资料看到是“赠品”且可以移除的就是免费制游戏)
以下游戏我会都会列出市集、点数商店、SteamDB网页
Age of Magic CCG - Viv Windwalker
https://i.imgur.com/ck4LnzD.jpg
https://steamcommunity.com/market/listings/753/426970-Viv%20Windwalker
https://store.steampowered.com/points/shop/app/426970
https://steamdb.info/app/426970/
Echo of Soul - Guardian
https://i.imgur.com/pxZLObk.jpg
https://reurl.cc/D9kAN5
https://store.steampowered.com/points/shop/app/290140
https://steamdb.info/app/290140/
GunZ 2: The Second Duel - A.C.S.S. Misha
https://i.imgur.com/ByPC7Dk.jpg
https://steamcommunity.com/market/listings/753/242720-A.C.S.S.%20Misha
https://store.steampowered.com/points/shop/app/242720
https://steamdb.info/app/242720/
Mabinogi - Devil Costume
https://i.imgur.com/7YaXHyD.jpg
https://steamcommunity.com/market/listings/753/212200-Devil%20Costume
https://store.steampowered.com/points/shop/app/212200
https://steamdb.info/app/212200/
TERA - Castanica
https://i.imgur.com/fQ6H9mK.jpg
https://steamcommunity.com/market/listings/753/323370-Castanica
https://store.steampowered.com/points/shop/app/323370
https://steamdb.info/app/323370/
以下两款没法靠SteamDB，要挂VPN才能绑定帐号（抱歉之前我没查清楚）
VPN领取游戏方法参考keylol论坛文章：
https://keylol.com/forum.php?mod=redirect&goto=findpost&ptid=219173&pid=3195571
Eternal Magic - Gunslinger
https://i.imgur.com/IzOrSQm.jpg
https://steamcommunity.com/market/listings/753/1153700-Gunslinger
https://store.steampowered.com/points/shop/app/1153700
https://steamdb.info/app/1153700/
MU Legend - Whisperer
https://i.imgur.com/jAB9z0d.jpg
https://steamcommunity.com/market/listings/753/874240-Whisperer
https://store.steampowered.com/points/shop/app/874240
https://steamdb.info/app/874240/
(2).无锁区游戏：
跟前面原理一样，在商店页点选安装游戏后再取消安装，不用下载游戏就会自动绑定帐号
Archeblade - Ridika The Temptress
https://i.imgur.com/qgmETXm.jpg
https://reurl.cc/d0kVgy
https://store.steampowered.com/points/shop/app/207230
Dragon Blood - Sagittarius Goddess
https://i.imgur.com/xaV5XLm.jpg
https://steamcommunity.com/market/listings/753/562840-Sagittarius%20Goddess
https://store.steampowered.com/points/shop/app/562840
KurtzPel - Marian&Lire
https://i.imgur.com/yiB9Rl8.jpg
https://steamcommunity.com/market/listings/753/844870-Marian%26Lire
https://store.steampowered.com/points/shop/app/844870
Metal Waltz - Jenny Khloe
https://i.imgur.com/q86RVtS.jpg
https://steamcommunity.com/market/listings/753/581130-Jenny%20Khloe
https://store.steampowered.com/points/shop/app/581130
以下几张在市集很便宜，可以考虑直接用买的
Kritika:REBOOT - The Reaper
https://i.imgur.com/rL6SnnE.jpg
https://reurl.cc/oL296q
Kritika:REBOOT - The Rogue
https://i.imgur.com/ILPaXok.jpg
https://reurl.cc/X6Megg
Onmyoji - Kagura
https://i.imgur.com/fxaCpGU.jpg
https://steamcommunity.com/market/listings/753/551170-Kagura