Dev Log #6: Six Months of Blood, Code, and Chaos — Nearing the Launch of Mark of Cain
Reflecting on six intense months of solo development as I approach the release of my first commercial game — Mark of Cain — on Steam.
We're an independent game development studio.
Mark of Cain 
What FPS was meant to be: fast, brutal, and just a little bit cursed.
Mark of Cain is a retro-inspired 2.5D arena shooter in the blood-soaked spirit of Doom, Duke Nukem, and Ultrakill but with a twisted edge all its own.
Play as John Demonhunter, a demon-slaying Greek badass cursed by God Himself to suffer eternal life—and eternal combat.
After centuries of slaughter, John got cocky.
The big guy upstairs took offense and branded him with the Mark of Cain a glowing symbol of divine punishment that ensures he can never die… but also never rest. Now Devil, seeing a golden opportunity, unleashes wave after wave of hellspawn, meme-fueled bosses, and cursed chaos to make John's unkillable life a living nightmare.
Welcome to a world where every demon is an inside joke, every death is a punchline, and survival is just the setup for the next round of absurdity.
Play now
Hat Hero
Project Clicker
Enter the whimsical world of Hat Hero, a thrilling pixel art clicker game where every tap takes you closer to victory! Face off against an outrageous lineup of enemies—from fearsome pirates to mischievous clowns—and collect their unique hats as trophies.
Upgrade your weapon to unleash devastating power and climb the ranks of the ultimate hero. Ready for a fresh challenge? Prestige to unlock exclusive skins and show off your style!
With addictive gameplay, charming visuals, and endless upgrades, Hat Hero offers a fun and wacky adventure for players of all ages.
Play now and become the ultimate Hat Hero!
About Us
We’re Mangas Mango Studios, an independent game developer based in Athens, Greece.
Created by Stamatios Valis.
Right now, it’s still just me, passionately working to bring my vision to life. After completing my first mobile game, I've shifted my focus to a much bigger project: a cooperative FPS game that will be released on Steam
This new project is all about blending exciting gameplay with meaningful progression and strong teamwork mechanics. It’s a natural evolution of my passion for games — creating experiences that feel rewarding, memorable, and fun with friends.
As a small studio, I stay player-first, listen closely to feedback, and iterate constantly to create the best experience possible. Without layers of management, every decision is made with care and purpose. I embrace challenges as opportunities to grow and push myself further.
My mission is to build games and a community that stand the test of time, crafting worlds that players want to return to again and again.
This is still just the beginning — and I’m more excited than ever about what’s ahead. Stay tuned!
