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    KalmarCTF

    4 editions·116 challenges·2023–2026

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    2026202520242023
    Average—/5Vote and rate each challenge below.

    2026

    30 challengesCTFtime

    crypto7

    MissingNo.3
    monoDOOM_ETERNAL
    RBG+
    RBG++
    RBG+++
    ternarya
    thousands_of_RNGs

    misc7

    __pyjail__
    EvilBabyKalmarCTF
    Git_Hoarder
    impossible_pygolf
    nix_revenge
    ReLuess_Your_Inihbitions
    Wheres_Your_HEAD_At

    pwn6

    Astralogy
    faulty
    File_Server
    Flagchecking_as_a_Service
    kalmar_b00tr0m
    musli

    rev4

    0racle
    Aros_25
    flag_checker
    Linkme

    web6

    Aperi_et_Inveni
    customainer
    RootBabyKalmarCTF
    varmarunionen
    works_as_specified_definitely
    works_as_specified_mostly

    2025

    35 challengesCTFtime

    crypto8

    basic_sums
    laconic
    lance_hard
    MonoDOOM
    Not_so_complex_multiplication
    short_circuit
    Very_Serious_Cryptography
    ZZKAoK

    misc7

    nix_build_as_a_service
    Paper_Viper
    Pycomment
    RWX_Bronze
    RWX_Diamond
    RWX_Gold
    RWX_Silver

    pwn5

    decore
    KalmarVM
    loadall.js
    Maestro_Revenge
    Merger

    rev7

    FlagSecurityEngine
    Jormungandr
    Shafus
    Shafus_Gone_Crazy
    Snake_I_Just_One_More_Apple
    Snake_II_Sonic_Snake_Fighter_II
    Snake_III_Hungry_for_Snake

    web8

    DNXSS_over_HTTPS
    Ez_flag_v3
    G0tchaberg
    KalmarDSL
    KalmarNotes
    No_SQLi
    Red_wEDDIng
    spukhafte_Fernwirkung

    2024

    26 challengesCTFtime

    crypto7

    breakfaest
    Cracking_The_Casino
    MathGolf_Warmup
    poLy1305CG
    Re_Cracking_The_Casino
    Shipwrecked_Lattices
    Symmetry_2

    misc6

    A_Blockchain_Challenge
    Docstring_Prison
    Futuristic_Secret_Storage
    MathGolf
    Reproducible_Pwning
    Snek_snake

    pwn5

    Beautify_Me
    Fast_Formatter
    Maestro
    msrable
    Symmetry_3

    rev4

    Deep_Dive_Division
    Rabbit_Hole
    Rabbit_Hole_Warmup
    Symmetry_1

    web4

    Ez_flag_v2
    File_Store
    No_eXcuSeS
    One_key_to_rule_them_all

    2023

    25 challengesCTFtime

    crypto8

    BabyOneTimePad
    BlindSecurity
    DreamHash
    EasyOneTimePad
    l33t-generator
    Reconstruction
    Telepound
    YoloProofs

    pwn6

    FIPC
    hyper-k
    js_in_my_bs
    mjs
    Robber
    swedish_memcpy

    rev6

    CycleChaser
    CycleChaserRevenge
    FormulaK
    Jumping_on_the_PPU
    Jumping_on_the_SPU
    Works_on_my_machine

    web5

    Ez
    HealthyCalc
    Invoiced
    PasswordHomecoming
    XScapy
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