Probably the most demanding feat I've accomplished in gaming. 9D is long, intricate, technical, and not for the faint of heart.

The D-Sides Pack (v3.0), a series of custom maps created by Monika523.
Download them here: https://gamebanana.com/maps/202524

Checkpoints:
0:00 Start
2:54 Peaceful Solitude
5:41 Glimpse of Freedom
10:21 Curiosity
14:13 Dedication
17:05 Memories
21:58 Creation
28:37 Exploration
34:46 Depression
41:18 Trust
46:47 Serenity
50:21 Revisit
55:59 Black Karma
1:05:04 Scattered Mirror of the Storm
1:19:19 Sunrise Running
1:25:57 Goodbye of the Mountain
1:35:17 Heart Beating
1:38:59 Realization
1:41:46 Parting
1:43:47 Plural
1:47:13 True Love
1:51:59 Reunification
1:59:42 Infinity (Moon Berry)
2:02:34 Point of no Return
2:04:56 Edge of the Universe
2:07:49 Bottomless
2:13:31 Final Goodbye

FAQ:
Q1: How many keys are there in this entire chapter?
A1: There are 18 optional keys, which are found in these checkpoints: https://docs.google.com/spreadsheets/...

Q2: Where can I listen to the bangers found at 1:41:46 and 1:47:10?
A2: These are original tracks made by Thegur90, and can be found at    • [Celeste D-Sides OST] 01: "Parting"   and    • [Celeste D-Sides OST] 02: "True Love"  

Q3: What happens if you go for the golden strawberry?
A3: If you make it to the heart with the golden strawberry, you are led to a final checkpoint with some more screens (see    • ❚Celeste❙Chapter 9D 100% ❰The Golden ...  ). I don't think anyone will ever attempt 9D golden seriously.

Q4: How do you see the screens at the Trust checkpoint (41:18)?
A4: This is done by installing the CelesteTAS tool (https://gamebanana.com/tools/6715), and turning on the "Simplified Graphics" setting.

Q5: What is the secret map found at 2:00:39 for?
A5: This is a map related to a secret in the Epilogue D-Side.

Q6: Why does the timer restart? Are you cheating?
A6: The timer restarts when I need to reset screens using debug mode, or when I restart from a checkpoint. All of the screens are completed legitimately, but debug mode is used occasionally for trivial backtracking or resetting.

Q7: How long did this chapter take you?
A7: The in-game timer clocked in at over 82 hours, which I completed over the span of 2 months.

#celeste