Xno's Difficulty Chart Obby (now known as HARD IMPOSSIBLE OBBY, previously XDCO for short) was a difficult and incomplete difficulty chart obby with 10 finished difficulties and 200 stages, of the 300 stages and 15 difficulties originally planned. The game was originally developed solely by @Wolf1te, with additional contributions being made on occasion by @ActuallyAKiwi and @or_ob. In early 2024, the game was acquired by @Squidingz. After that, the game was abandoned. Before March 2024, the game had monthly obbies with 30 stages from different difficulties available. Players could receive rewards if they completed them such as a custom halo or free skips.

Gameplay

Difficulties

Effortless
Very Easy
Easy
Medium
Average
Hard
Very Hard
Difficult
Challenging
Extreme
Impossible
Remorseless
Insane
Terrifying
Arduous
Catastrophic

Trivia

XDCO (or Xno's Difficulty Chart Obby) is currently called HARD IMPOSSIBLE OBBY. Originally, after the acquisition, the game was renamed to the NOT POSSIBLE OBBY, which was already being used at the time.
A successor was attempted in May of 2024 called Version's Difficulty Chart Obby with much of the same architecture, but it was never finished nor released.

Development Team

Core Developers

@Wolf1te

Contributors

@ActuallyAKiwi - Additional Stages
@or_ob - Additional Stages

Media

Thumbnails

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Icons

Active Icon

Trailers

This obby has no official trailers about it and no other video advertising.

Community Videos

Currently, there are no known relevant community videos featuring this obby yet.

Promotional Codes

All but some promotional codes are still available today as the game is currently abandoned.

KIWIFIED (expires January 1st, 2027 - granted the Kiwi Fruit halo)
I-ADMIT-WOLFITE-IS-COOL (expired January 1st, 2025 - granted 1 free skip)
BETA (expired March 1st, 2024 - granted the rare BETA halo)
IS-THIS-A-CODE (expired January 1st, 2025 - granted the Code Guesser halo)
PG (expired January 1st, 2025 - granted the Painted Green halo)
OPEN-FLAME-IN-PUBLIC-AREAS (expired January 1st, 2025 - granted the Flame halo, a literally burning fire on your head)
BLUE-BIRD-2023 (expired January 1st, 2024 - granted the Blue Bird 2023 halo)
1000-LIKES (expired March 1st, 2024 - granted 3 free skips)
1K-VISITS (expired March 1st, 2024 - granted the 1K Visits halo)
10K-VISITS (expired January 7th, 2024 - granted the 10K Visits halo and a free skip)

FAQ

Who is the developer of Xno's Difficulty Chart Obby?

Xno's Difficulty Chart Obby was developed by XDCO and was initially released on the Roblox platform in December of 2023 (approximately 2 years and 9 months ago). The game was created with additional development contributions from @Wolf1te.

How do I play Xno's Difficulty Chart Obby on Roblox?

You can play Xno's Difficulty Chart Obby for free on Roblox. The game is currently open to the public, meaning anyone with a Roblox account can join and start playing. Simply search for the game title on the Roblox website or mobile app to start playing. Alternatively, you can directly click to reach the Roblox page.

How many stages (levels) are in Xno's Difficulty Chart Obby?

Selection from our database indicates that Xno's Difficulty Chart Obby features a total of 200 unique stages for players to complete. Each stage presents different platforming challenges that increase in difficulty as you progress.

What is the official difficulty tier for Xno's Difficulty Chart Obby?

Xno's Difficulty Chart Obby is officially classified as a Tier 9 Difficulty Chart Obby. This tier rating helps players understand the level of skill and precision required to finish the game compared to other experiences on the Obby Wiki. The higher the tier, the harder the obby. See more information on the Tiers page.

Does Xno's Difficulty Chart Obby use R6 or R15 Roblox avatars?

Xno's Difficulty Chart Obby is specifically designed for use with the classic R6 avatar rigs. R6 avatars are a staple in the obby community due to their consistent physics and predictable movement, making them ideal for steady and enjoyable gameplay in obbies. This is typically a standard for most obby developers.

When was Xno's Difficulty Chart Obby released?

Xno's Difficulty Chart Obby was first released in December of 2023, around 2 years and 9 months ago.

Monetization

Passes

Name	Description	Price	Details	For Sale
X2 Rebirth Points	Gain twice the amount of points when rebirthing.	599 Robux	Created: 27 May 2023, 03:41 (UTC) `181572788` - `1671177494`	✅ For Sale
Easy Mode	—	499 Robux	Created: 2 May 2023, 11:08 (UTC) `171693405` - `1671177691`	✅ For Sale
Heal Coil	—	79 Robux	Created: 2 May 2023, 11:06 (UTC) `171692769` - `1671177351`	✅ For Sale
Gravity Coil	—	199 Robux	Created: 2 May 2023, 11:06 (UTC) `171692716` - `1657553925`	✅ For Sale
Fusion Coil	—	299 Robux	Created: 2 May 2023, 11:06 (UTC) `171692630` - `1671177405`	✅ For Sale
Speed Coil	—	149 Robux	Created: 2 May 2023, 11:05 (UTC) `171692578` - `1671177560`	✅ For Sale

Badges

References

↑ ^1.0 ^1.1 The Obby Wiki automatically sources live statistics directly from Roblox's database. See Xno's Difficulty Chart Obby on Roblox for more information. Statistics last retrieved at: 2026-09-09T01:52:32.289Z UTC.

Difficulty Chart Obby

Xno's Difficulty Chart Obby

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[statistics_data-1] 1.0 ^1.1 The Obby Wiki automatically sources live statistics directly from Roblox's database. See Xno's Difficulty Chart Obby on Roblox for more information. Statistics last retrieved at: 2026-09-09T01:52:32.289Z UTC.

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