Hi! There are several codes in Borderlands 3 that can be used to obtain gold keys thanks to which we can open the mysterious chest in the Sanctuary

it's easy.

1. you click esc
2. you click social and Shift code
3. unfortunately you can't copy and paste so you have to rewrite the code
4. After activating the code, click on the mail and receive the keys

To unlock diamond keys you have to accept them from the mail just like the golden keys.
You can chose only one item from each wall.

These keys are ones that will 100% work

20.01.2024 still works
ZFKJ3-TT3BB-JTBJT-T3JJT-JWX9H
WSCBT-R5BB3-66KX9-F3JBT-ZW3JK
CZ5JT-HFH99-KXKRZ-6BTJJ-BS5WB
K95BT-B99H9-CX5XH-RTJB3-C6SJX
KZKBB-5HZ9S-CFKR9-RJ3T3-JBTK6
CS5JB-CTTBB-FFWXZ-FJ3BT-TC6R3
CSW33-HBBJB-R65XH-XJTJ3-CT963
KHWTB-3CBJB-6XWFZ-6B3BB-T5CCJ
ZFKJ3-TT3BB-JTBJT-T3JJT-JWX9H
ZFKJ3-TT3BB-JTBJT-T3JJT-JWX9H

1 keys:
Z65B3-JCXX6-5JXW3-3B33J-9SWT6 - 1 golden key
ZRWBJ-ST6XR-CBFKT-JT3J3-FRXJ5 - 1 golden key
ZFKJ3-TT6FF-KTFKT-T3JJT-JWX36 - 1 golden key
9XCBT-WBXFR-5TRWJ-JJJ33-TX53Z - 1 golden key
2 keys:
5HWT3-ZCH6Z-KXWRZ-6JTBT-TH5KC - 2 golden key
3 keys:
ZFKJ3-TT3BB-JTBJT-T3JJT-JWX9H - 3 golden key
RRRJT-B5TB3-J3JBJ-BJJJB-WTHSS - 3 golden key

50 keys:
SXFBT-39953-J33TT-3T333-KSHW6 - 10 Diamond Keys & 50 Golden Keys

KZKBB-5HZ9S-CFKR9-RJ3T3-JBTK6 - Arachnoir head
K95BT-B99H9-CX5XH-RTJB3-C6SJX - Skagwave head
CZ5JT-HFH99-KXKRZ-6BTJJ-BS5WB - Saurian Synth Head
CS5JB-CTTBB-FFWXZ-FJ3BT-TC6R3 - Daemon head
CZKTB-6BTJ3-R6KRZ-6B3TT-RX5ZH - Gray Matter Head
KHWTB-3CBJB-6XWFZ-6B3BB-T5CCJ - Null Value Head
KZKJB-C5BTT-RXW69-XJ33B-5JRBS - Super Mecha Head
KH5J3-9BSSS-K6WF9-RT3BB-FTBCJ - Popsychle Cosmetics Bundle
WSCBT-R5BB3-66KX9-F3JBT-ZW3JK - Pilot Punk Head
KSK33-S5T33-XX5FS-R3BTB-WSXRC - Antihero Head for FL4K + Saurian Skull Trinket
KSWJJ-J6TTJ-FRCF9-X333J-5Z6KJ - Shrine Saint Head for Amara

59CTB-CBXTF-59BF5-SBTBB-ZFFZS - hellwalker shotgun
CS5TJ-HJXB6-WSTRC-Z3T3J-W5TTZ - 4 golden key + 1 diamond key
FRRJT-FJ3BB-BBJB3-TJTBT-B9B65 - 3 golden key
XFXJB-3BBJT-B3BJB-3JJ3B-F5X96 - 3 golden key
HXKBT-XJ6FR-WBRKJ-J3TTB-RSBHR - 1 golden key
JJ6T3-9CSRB-RKJ5W-JBJJJ-WRXRC - 1 diamond 3 golden keys
WZK3T-XXZHH-KFK6H-6J33T-S959T - Ratch Rider Head - 2/1/2022
5ZKJJ-CHJZZ-WRCXH-XJJB3-65SJS - 3 golden key
5HCT3-JJT3J-FF5X9-6JJTB-TZ5CJ - One Diamond Key
5HWTJ-JFS69-WR5XS-FBTTJ-99HWH - 3 golden key - Expired
C3KTJ-WF9SK-F9F6H-56TT3-CZ6FR - 10 Golden Keys - Expires April 10
CTWJB-H5HSW-R96RS-5R3BB-H33K5 - 5 Golden Keys - Expires April 8
C3CJ3-TRSZC-FHXX9-WRTTT-CJ56H - 3 Golden Keys - Expires March 23
CTWBT-RKZZ5-6S6XS-WR33T-RHZ59 - 3 Golden Keys - Expires March 16
C3KJB-3H9HZ-63KZW-9BKJB-WZRCR - 5 Golden Keys - Expires March 19
C3C3B-BB9SS-FTKHK-ZTWTB-99CRX - 10 Golden Keys - Expires March 3
C35TJ-WH9Z9-X3KSC-S3KBT-J99ZB - 3 Golden Keys - Expires Feb. 24 at 10am CST
K3WBT-B5ZHZ-63CZC-S35JT-F3FT6 - 3 Golden Keys - Expires Feb. 20 at 10am CST
5JWBT-FT9ZZ-FBC95-935JT-RTFRR - 3 Golden Keys - Expires Jan. 31 at 10am CST
KJCTJ-F9RZH-X3WS5-ZTWB3-BZR6J - 3 Golden Keys - Expiry date unknown
WBC3T-5JH99-XTWZ5-9BKB3-BT63Z - 3 Golden Keys - Expires Jan. 20 at 10 am CST
5BCBB-5SRS9-RTW9C-9JCJB-XK3X9 - 3 Golden Keys - Expires Dec. 26 at 10 am CST
CSKT3-6F9HB-ZWJC5-BTBT3-JJFXC - 1 Golden Key - Expires Dec. 7 at 10am CST
CHKJ3-B6HHB-ZWBK5-3JJJT-CRHFJ - 1 Golden Key - Expires Nov. 22 at 10am CST
WZCTT-5CSZT-ZW3KW-333JT-69ZW6 - 1 Golden Key - Expires Nov. 19 at 10 am CST
CS53B-FBS9J-95TK5-BJTT3-KJKTJ - 1 Golden Key - Expires Nov. 11 at 10am CST
W95BB-3BZS3-ZCBWC-BJT3B-9BTKS - 1 Golden Key - Expires Nov. 9 at 10 am CST
5ZWTT-SZXZ3-SW3W5-33BTT-X5Z3H - 1 Golden Key - Expires Nov. 8 at 10 AM CST
K9W3T-BJZ59-B9SHB-6B3JT-T9CFF - 4 Halloween heads - Expires Nov. 5 at 2 AM CST
C9KBJ-6HXHT-9WJKW-BJ33B-SK95C - 1 Golden Key - Expires Nov. 4 at 10 AM CST
KB5JT-BFRZ9-XTWZ5-93KJB-3RRFT - 3 Golden Keys - Expires Nov. 4 at 10 AM CST
W9KBJ-95X9T-ZC3KW-BJTJT-5FF3T - 1 Golden Key - Expires Oct. 29 at 10 AM CST
CZWJJ-X6XHJ-9CJC5-JTT3J-WZ6WC - 1 Golden Key - Expires Oct. 28 at 10 AM CST
KZK3T-K6RSJ-ZWTCK-JTJ3T-T3HJJ - 1 Golden Key - Expires Oct. 27 at 10 AM CST
CHCBT-TF6HB-ZC3WC-BT333-KBR3B - 1 Golden Key - Expires Oct. 26 at 10 AM CST

if some code is not on the list and it works, you can write it in the comment.
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