Computer Science student at University of Latvia. CTF player and member of 0xFUN (Team Rank #7). Passionate about cybersecurity, game development, and building secure software solutions.
Games and tools I've built
A 2D puzzle platformer built with Godot 4.5 featuring a unique dimension-switching mechanic. Players switch between Hope and Despair dimensions, affecting platform visibility and level layout. Includes wall sliding, dashing, and custom shaders for dimension transitions.
Original challenges designed to test various skills
A multi-layered puzzle involving hidden hex blobs, XOR encoding, spectrogram analysis, Morse code, corrupted images, and AES decryption. Find the real present among the fake ones.
Exploit GraphQL vulnerabilities to access Santa's protected data. Features introspection discovery, authorization bypass, and batch query attacks.
A Minecraft world forensics puzzle. Recover the creator's last logout position from NBT data, decode Base64 clues hidden in books, use bedrock pattern matching to locate the final flag stash.
Decode a deep-space audio transmission hiding raster images. Detect sync pulses in a WAV file, extract scanlines, and reconstruct hidden pictures — Golden Record style.
A corrupted PNG with a hidden 7z archive appended after the IEND chunk. Fix the signature byte, parse PNG chunks to find the trailer, swap the magic bytes, and extract the real flag.
A star-tracker calibration puzzle. Use labeled guide stars to fit a camera model with radial distortion, then invert it to map all detections back to sky coordinates. The brightest stars spell a hidden message.
Blind plate-solve 4 noisy star frames against a catalog, extract matching star IDs, derive per-frame ChaCha20-Poly1305 keys, and decrypt flag parts. AEAD authentication enforces perfect correctness.
Three images, three fragments — each pointing to a Latvian place. Use reverse image search, identify carved faces, and trace devil folklore to pinpoint three locations with proper Latvian diacritics.
A GTA V geolocation challenge. Given a screenshot of Franklin standing next to a road, identify the exact in-game location using database lookups or manual map exploration.
Documented competitions with detailed writeups
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