Project Δ
by: Deltarust
Project Δ is a VRChat world created by Deltarust and released in September 2021. It has built a solid following since launch. It runs on PC, Quest, and holds up to 40 players per instance.
［v2․0］ Project Delta‚ a quick-loading Undertale⁄Deltarune mirror world with themes based on all major areasǃ Last updated Nov․ 21‚ 2025˸ Saving‚ new themes‚ and many improvementsǃ
World Details
It has collected 4,615 favorites and 331,160 visits so far, ranking #5,976 by favorites among the 210,526 VRChat worlds indexed on VRCmap.
In the past 30 days this world gained 93 favorites and 25,679 visits.
Deltarust has 12 worlds indexed on VRCmap with 45,708 favorites in total; the most popular of them is Minecraft Evening v2․4.
The world went live in September 2021 and was last updated on November 22, 2025, about 11 months ago.
Tags: mirror undertale delta deltarune performance
More worlds by Deltarust
- Minecraft Evening v2․4 (22,819)
- after school (5,753)
- Plots v2․0 (3,321)
- Minecraft Evening Classic (2,476)
- Hideout - Bomb Rush Cyberfunk (2,225)
- Link's House - Breath of the Wild （BOTW） (1,357)
Similar VRChat worlds
- Deltarune Tree (146)
- man․ogg (107)
- Undernet HUB (65,017)
- Snowdin Town［3․3］ (44,062)
- Snowdin City Hub （S4） (20,820)
- Lotus' Avatar World (14,570)
- Yet another undertale avatar world i guess (13,304)
- Tenna's Green Room - Deltarune (12,885)
- Bill Cipher's Avatar World (10,039)
- Cellion 'n Friends Undertale Avis (9,283)
- Deltarune Avatars (8,907)
- Bergentruck Simulator (6,967)