CTFtime.org

Project Sekai

Also known as
  • Pepekai
  • Jane Street Amateurs
  • PIG SEK@1

Website: https://sekai.team/

Twitter: https://twitter.com/ProjectSEKAIctf

LinkedIn: https://www.linkedin.com/company/project-sekai-ctf/

Sign in to join the team.



We are recruiting experienced players for upcoming CTFs.

DM sahuang on Discord or fill out https://t.co/MVOyJzzJMs if interested :)

Participated in CTF events

Overall rating place: 7 with 838.668 pts in 2024

PlaceEventCTF pointsRating points
41337UP LIVE CTF7098.000026.009
1HKCERT CTF 2024 (Qualifying Round)11395.0000122.440
1ISITDTU CTF 2024 Quals5685.0000102.000
2SCTF 202412955.950053.388
8m0leCon CTF 2025 Teaser1876.000043.643
10BlackHat MEA CTF Qualification 20242380.000024.785
14ImaginaryCTF 20248013.000030.422
12UIUCTF 20249800.000058.263
1justCTF 2024 teaser4806.0000154.340
15Codegate CTF 2024 Preliminary3006.000019.804
2ångstromCTF 20244150.0000104.777
2BYUCTF 202414475.000044.901
1cr3 CTF 202415735.000048.080
1 WolvCTF 202414866.000070.500
13bi0sCTF 20246420.000041.290
1LA CTF 202419071.000049.860
5ESCAPE CTF Final4060.00006.876
15Insomni'hack teaser 20241115.000017.291
1UofTCTF 202414025.000047.800
1IrisCTF 202414691.000049.180

Overall rating place: 10 with 744.756 pts in 2023

PlaceEventCTF pointsRating points
837C3 Potluck CTF2255.000012.271
7CTFZone 2023 Final3833.00000.000
1 GlacierCTF 20236471.00000.000
11337UP LIVE CTF14869.000048.460
6BlackHat MEA CTF Final 20235905.00000.000
7BRICS+ CTF Finals 20238770.39009.904
1HK Cyber Security New Generation CTF Challenge 2023 (Online)11409.0000110.000
3Srdnlen CTF 20237556.000025.418
13Hack.lu CTF 20231719.000038.548
18MapleCTF 20231936.00009.255
1BRICS+ CTF Quals 20234745.000049.360
87vsCTF 20231463.00003.605
1Bauhinia CTF 20235260.000049.500
5CTFZone 2023 Quals5716.000079.043
10ESCAPE CTF 2023 Preliminary2680.00000.000
3ImaginaryCTF 202314389.000044.899
18zer0pts CTF 20232285.000031.395
1CrewCTF 202326745.000040.660
3UIUCTF 20234712.000063.613
1SEETF 202319584.000049.760
1BYUCTF 202323491.000041.820
1UMDCTF 202323751.000087.540
6ångstromCTF 20233110.000097.477
1Bucket CTF 202316419.000049.600
1RITSEC CTF 20239362.000061.240
1WolvCTF 202316906.000048.660
1UTCTF 202318214.000087.080
45KalmarCTF 20231642.00002.978
19HackTM CTF Quals 20231888.000010.120
2LA CTF 202315372.000036.611
58DiceCTF 2023979.00007.008
41Insomni'hack teaser 2023381.00002.481
1idekCTF 2022*21895.000049.120
3TetCTF 20239825.000059.283

Overall rating place: 20 with 518.648 pts in 2022

PlaceEventCTF pointsRating points
347Damncon 20221.00000.053
1X-MAS CTF 202211024.000048.840
10KITCTFCTF 20225270.000013.491
1SunshineCTF 20224838.000048.200
7Square CTF 20223301.000032.071
78SECCON CTF 2022 Quals533.000013.117
1HK Cyber Security New Generation CTF Challenge 20225826.000074.000
73N1CTF 2022108.00001.613
1GDG Algiers CTF 202213879.000047.080
9DownUnderCTF 2022 (Online) 9817.000022.570
17MapleCTF 20222670.00008.244
15Hacker's Playground 20222119.000011.570
3SHELLCTF 20225952.000031.680
4corCTF 20226168.000023.959
3UACTF 202213199.000027.099
9DiceCTF @ HOPE 20229191.000044.766
3ImaginaryCTF 20229950.000030.116
118Google Capture The Flag 2022383.00005.773
1BSidesTLV 2022 CTF5900.000043.760
3TyphoonCon CTF 20223940.000023.842
1Access Denied CTF 202226834.000047.500
11HSCTF 99027.000027.914
1BYUCTF 202213980.00000.000
66Hack-A-Sat 3 Qualifiers279.00003.570
1hackrocks & HackArmour CTF660.000047.220
5San Diego CTF 20228305.000025.858
68ångstromCTF 20222330.000028.277
6NahamCon CTF 202222001.000025.337
14b01lers CTF2080.000019.280
19TAMUctf 20223329.000010.734
3CrewCTF 202221000.000025.379
9HackPack CTF 20222774.000026.959
33 nullcon HackIM 2022894.00004.998
104Midnight Sun CTF 2022 Quals79.00000.598
23UMassCTF 20222661.00009.232
1RITSEC CTF 202210777.000063.640
177LINE CTF 2022101.00000.626
2Wolverine Security Conference/CTF11924.000033.776
7OFPPT-CTF Morocco20022.000022.126
1VishwaCTF 202220894.000041.580
18zer0pts CTF 20221505.000011.425
7UTCTF 202214074.000029.258
6DaVinciCTF 20228875.000025.045
49Engineer CTF4131.00009.510
9UMDCTF 202217948.000025.037
1FooBar CTF 20226379.000043.220
1wtfctf 20223719.000038.420
2Ugra CTF Quals 20222975.000045.988
11TSJ CTF 20221146.000010.162
139SUSCTF 2022279.00000.777
1Guinean Cyber Security Challenge 1215.000020.660
9MHSCTF 20221070.00000.000
174VU CYBERTHON 202230.00000.995
36Decompetition v2.0851.99003.720
70Hayyim CTF 2022100.00000.681
9DefCamp CTF 21-22 Online3838.000036.967
1Cyber Grabs CTF 0x03 Junior6550.000046.460
73DiceCTF 2022736.00003.205
30Insomni'hack teaser 2022529.00004.168
83Real World CTF 4th105.00001.982
3KnightCTF 20225075.000022.674
46Newark Academy CTF1265.00006.870
49TetCTF 2022516.00002.307

Overall rating place: 312 with 90.944 pts in 2021

PlaceEventCTF pointsRating points
8BackdoorCTF 20211524.000012.872
131ASIS CTF Finals 202122.00000.738
534X-MAS CTF 2021 Second Weekend6.00000.050
52hxp CTF 2021397.00005.958
360SECCON CTF 202153.00001.042
17idekCTF 20215248.00009.089
6NITECTF9750.000022.229
262HITCON CTF 202192.00001.591
27MetaCTF CyberGames 20219450.000015.993
2082021 Metasploit community CTF200.00002.775
113Ledger Donjon CTF 20212.00000.000
15TFC CTF 20212823.000015.934
90Balsn CTF 202150.00000.800
63K3RN3LCTF1416.00003.462

Organized CTF events

NameWeight
SekaiCTF 202436.96
SekaiCTF 202324.86
SekaiCTF 202224.86

Team members

Team writeups

EventTaskAction
UofTCTF 2024Export Grade Cipher [500]read writeup
UIUCTF 2023Fast Calculator read writeup
WolvCTF 2023WannaFlag V: The Mastermind [500]read writeup
WolvCTF 2023WannaFlag IV: Exfiltration [491]read writeup
WolvCTF 2023WannaFlag III: Infiltration [318]read writeup
WolvCTF 2023WannaFlag II: Payments [348]read writeup
WolvCTF 2023WannaFlag I: An Introduction [188]read writeup
LA CTF 2023stuff [497]read writeup
LA CTF 2023redact [476]read writeup
LA CTF 2023Rut-Roh-Relro [462]read writeup
idekCTF 2022*NMPZ [474]read writeup
GDG Algiers CTF 2022MLM [500]read writeup
Cyber Apocalypse CTF 2022: Intergalactic Chase Memory Acceleration [350]read writeup
NahamCon CTF 2022GitOps read writeup
CrewCTF 2022EzChall Again [917]read writeup
CrewCTF 2022EzChall [906]read writeup
RITSEC CTF 2022Hamxor [500]read writeup
Wolverine Security Conference/CTFCPA-Secure Diffie–Hellman? [500]read writeup
DaVinciCTF 2022Monkeey [50]read writeup
DaVinciCTF 2022Elon Musk [120]read writeup
DaVinciCTF 2022Painting spot [426]read writeup
FooBar CTF 2022death-note [491]read writeup
Ugra CTF Quals 2022Играет как умеет read writeup
Ugra CTF Quals 2022Разборчивая змейка read writeup
Ugra CTF Quals 2022cmap read writeup
Ugra CTF Quals 2022noteasy03 read writeup
TSJ CTF 2022bacteria read writeup
DiceCTF 2022vm-calc [481]read writeup
Cyber Grabs CTF 0x03 JuniorUnbr34k4bl3 [942]read writeup
DiceCTF 2022knock-knock [107]read writeup
Load more...