200 Minutes of /vr/
13 May 2014 - 08 Jul 2014
56 calendar days
33 maps
https://desuarchive.org/vr/thread/1614552/#1620243 
https://desuarchive.org/vr/thread/1748923/#q1751569 

300 Minutes of /vr/
06 Aug 2017 – 16 Sep 2017 
41 calendar days
33 maps
https://desuarchive.org/vr/thread/4172380/#q4173453 
https://www.doomworld.com/forum/topic/97033-updated-300-minutes-of-vr-speedmap-megawad/ 

Unnamed Halloween project hosted by Repugnus 
01 Oct 2017 - 26 Oct 2017
25 calendar days
??? maps
https://desuarchive.org/vr/thread/4294178/#q4298105
https://desuarchive.org/vr/thread/4348815/#q4355595

100 Minutes of /vr/
29 Sep 2018 – 30 Dec 2018
92 calendar days
13 maps
https://desuarchive.org/vr/thread/5069175/#q5072356 
https://www.doomworld.com/forum/topic/103723-100-minutes-of-vr-half-the-time-half-the-maps/ 

HUH
22 Jun 2019 - 04 Oct 2019
104 calendar days
11 maps
https://desuarchive.org/vr/thread/5677562/#q5682141
https://desuarchive.org/vr/thread/5922360/#q5927153

Porkin' Across Parthoris
01 Sep 2019 - 28 Nov 2019 (may have "ended" earlier, lead disapeared without official cancelation)
88 calendar days
https://desuarchive.org/vr/thread/5852238/#q5852732
https://desuarchive.org/vr/thread/6038021/#q6038579

2048 units of /vr/
03 Jul 2020 - 28 Aug 2020
56 calendar days
32 + 6 maps
https://desuarchive.org/vr/thread/6565828/#q6570917
https://www.doomworld.com/forum/topic/116497-new-update-v16-2048-units-of-vr-boom-megawad-for-doom-ii/

500ml of /vr/
29 Aug 2020 - 01 Feb 2021
156 calendar days
6 maps
https://desuarchive.org/vr/thread/6777474/#6789185
https://desuarchive.org/vr/thread/7361485/#q7364041

Hard Fast Faggot Maps
03 Feb 2021 - 01 Jun 2021
118 calendar days
18 maps
https://desuarchive.org/vr/thread/7375298/#q7375313
https://desuarchive.org/vr/thread/7813412/#q7820049

Ad Mortem (Phase 1) (Never officially left beta until phase 2. end date is for the first public release)
28 Aug 2021 - 30 Oct 2021
63 calendar days
18 maps
https://desuarchive.org/vr/thread/8080651/#q8081398
https://desuarchive.org/vr/thread/8281546/#q8286381

Patchwork (!)
06 Nov 2021 - 10 Dec 2021
34 calendar days
0 maps
https://desuarchive.org/vr/thread/8297639/#q8307479
https://desuarchive.org/vr/thread/8408750/#q8408751 

Violent Rumble (1)
26 Apr 2021 - 01 Dec 2021
219 calendar days
10 maps
https://desuarchive.org/vr/thread/7685287/#q7689986
https://desuarchive.org/vr/thread/8378328/#q8380668

400 Minutes of /vr/
27 Apr 2022 - 11 May 2022 
14 calendar days (What the hell?)
37 maps
https://desuarchive.org/vr/thread/8852613/#q8855685
https://www.doomworld.com/forum/topic/129139

512 Linedefs of /vr/
18 May 2022 - 23 Jun 2022
36 calendar days
32 maps
https://desuarchive.org/vr/thread/8919280/#q8920816
https://desuarchive.org/vr/thread/9025637/#9032897

94 Protons Of /vr/
07 Jun 2022 - ???
19 maps
https://desuarchive.org/vr/thread/8984235/#q8988219

Violent Rumble 2
05 Sep 2022 - 13 May 2024
616 calendar days
2 maps?
https://desuarchive.org/vr/thread/9236835/#q9236867
https://desuarchive.org/vr/thread/10927448/#q10928763

Unrattled
02 Nov 2022 - 22 Dec 2022
50 calendar days
11 maps
https://desuarchive.org/vr/thread/9377736/#q9384165
https://desuarchive.org/vr/thread/9500837/#9512195

/vr/ Mondo Project 2022
01 Feb 2022 - 01 Jan 2023
334 calendar days
9 submissions
https://desuarchive.org/vr/thread/8573823/#q8584531
https://desuarchive.org/vr/thread/9523097/#q9535146

Ad Mortem: Phase 2
20 Aug 2022 - 24 Oct 2022
65 calendar days
9 maps
https://desuarchive.org/vr/thread/9192829/#q9194259
https://desuarchive.org/vr/thread/9354431/#q9359752

First Dates of /vr/ (!)
31 Dec 2022 - 07 Jan 2023
7 calendar days
0 maps
https://desuarchive.org/vr/thread/9523097/#q9532457
https://desuarchive.org/vr/thread/9539408/#q9552394

A Serious Case Of /vr/
28 Jan 2023 - 14 Aug 2023 
198 calendar days
??? maps
https://desuarchive.org/vr/thread/9611263/#q9611406
https://desuarchive.org/vr/thread/10927448/#q10928083
https://desuarchive.org/vr/thread/10154818/#q10156295

Fore/vr/ Alone
10 May 2023 - ???
23 maps
https://desuarchive.org/vr/thread/9890843/#q9892453

Ad Mortem: Phase 3
11 Sep 2023 - 31 Oct 2023
50 calendar days
7 maps
https://desuarchive.org/vr/thread/10230372/#q10235841
https://desuarchive.org/vr/thread/10356330/#q10368923

Sum Ting /vr/y Wong
14 Nov 2023 - ???
??? maps
https://desuarchive.org/vr/thread/10395242/#10413464

Vertex Relocation
11 Jan 2024 - ???
17 maps
https://desuarchive.org/vr/thread/10586762/#q10592017

Fraggot
26 Apr 2024 - 18 Jun 2024
https://desuarchive.org/vr/thread/10884302/#q10885789
https://desuarchive.org/vr/thread/11017349/#q11028696