Screenshots
Watch trailer on Steam ↗Retroid: Cartridge Protocol
Zero1Play · Published by Zero1Play
4 user reviews — 100% positive (4 reviews) · 25 achievements
Last updated 28 Sept 2026
Endless battlefields, endless threats from the Overmind army. Grow stronger through retro game cartridges, unleash powerful action, and dive into relentless roguelike combat. In this blend of classic vibes and modern impact, become the last hero to reclaim the planet.
£2.49
Lowest price we've ever recorded
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Price history
Action, Indie, Early Access · 2025 · More under £5 games
Explore endless battlefields as you face off against the Overmind army. Grow stronger through vintage game cartridges, unleashing powerful action in this unique blend of classic and modern.
About this game
🎮 A New Experience in Sci-Fi Action Roguelike
Retroid: Cartridge Protocol combines fast-paced combat, unpredictable enemies, and the thrill of progression into a high-quality sci-fi roguelike experience. Every run offers new battles and strategic choices, keeping the challenge fresh and immersive.
📘 Lore
Once overshadowed, Dr. Victor stole Dr. Evelyn’s groundbreaking technology out of envy, creating the Overmind army to seize control of the planet. As Prototype Zero-One, you are the only one who can unlock the hidden power within the cartridges and reclaim the world.
⚔️ Features
Unpredictable battles – Enemy evolutions create new combat patterns every run.
Simple yet deep controls – Outsmart foes and map traps with melee strikes and precise dashes.
Progress through exploration – Permanent and temporary upgrades fuel long-term growth.
Detailed sci-fi design – Immerse yourself in a richly crafted futuristic world.
Find every cartridge. Unlock your final evolution.
Take back the planet from the Overmind army.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64bit
- Processor: Intel Core i3-3210
- Memory: 4 GB RAM
- Graphics: DX11, DX12
- DirectX: Version 11
- Storage: 1200 MB available space
- Additional Notes: Requires 64-bit processor and operating system
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 64bit
- Processor: Intel Core i5-4690 or higher
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 660 or higher
- DirectX: Version 11
- Storage: 1200 MB available space
- Additional Notes: Requires 64-bit processor and operating system
Supported Languages
Latest news
AnnouncementsOfficial
Early Access Starts Today — Play Up to 10 Hours!
Hello everyone, this is the Retroid: Cartridge Protocol development team!Starting today, our Early Access is officially live. You can now experience the core combat, exploration, and progression systems — with up to 10 hours of gameplay available.From this moment, the world begins to move through your hands. We’re eagerly waiting for your reviews, feedback, and even your toughest criticism.We’re a small team, but we believe this project will grow stronger together with our players.Thank you for joining us at the start of this Early Access journey. Your first play will become the first record in this world.— Retroid Dev Team 🎮Read full article on Community Announcements (zero1dev01)AnnouncementsOfficial
Early Access Is About to Begin!
Hello everyone, this is the Retroid: Cartridge Protocol team!We’re thrilled to announce that Early Access for Retroid is about to begin! 🚀 Thank you so much for your patience and incredible support so far.This isn’t just a test — it’s the beginning of a journey we’ll complete together with our players.During Early Access, you can play through Chapters 1–3, and fully experience Retroid’s unique combat and exploration systems. Your feedback will directly help us improve and expand the game in future updates.🎮 Let’s make Retroid deeper and stronger together. Join the discussion on Steam Community or on Twitter (X) — we’re listening!We’re a small team, but we truly believe that your voices make Retroid a living, evolving experience.That moment is almost here— the journey of Retroid: Cartridge Protocol begins soon.— The Retroid Dev Team 🎮Read full article on Community Announcements (zero1dev01)AnnouncementsOfficial
Taking a Short Break for Chuseok 🌕
Hello everyone, this is the Retroid: Cartridge Protocol team!We’ve just wrapped up TGS 2025, and it was amazing to meet so many players who shared their feedback and support. Thank you all for stopping by our booth and playing our demo! 🙏During the Chuseok holiday, our team will be taking a short refresh break to recharge and organize all the feedback we received. Once we’re back, we’ll continue building an even better Retroid experience for you.🌕 Wishing you all a wonderful and peaceful Chuseok! We’ll return right after the holidays, full of energy and ready to dive back into development.— The Retroid Dev Team 🎮Read full article on Community Announcements (Pearplay)AnnouncementsOfficial
🎮 Tokyo Game Show 2025 Booth Setup Complete & First Demo Revealed!
Hey everyone! Today, we finally finished setting up our booth for Tokyo Game Show (TGS)!You can find us at INDIE GAME ARENA 11-E17, where starting tomorrow we’ll be showcasing our first demo (playable up to Chapter 2!). Come try it out, share your feedback and support, and help us make the game even better!And that’s not all — if you stop by the booth, you’ll also receive an exclusive limited-edition sticker 🎁 So don’t miss it!We can’t wait to meet you all at TGS tomorrow. See you at the booth! 🙌Read full article on Community Announcements (Pearplay)AnnouncementsOfficial
Exhibiting at Tokyo Game Show 2025!
We’re excited to announce that Zero1Play will be joining Tokyo Game Show 2025 at the Indie Game Arena, Booth 11-E17! This will be the very first chance to play the offline demo of Retroid: Cartridge Protocol.🎮 Play and Get a Sticker! Try out the demo at our booth and grab an exclusive Retroid sticker as a gift.💬 Share Your FeedbackAfter playing, drop by our social channels and let us know your thoughts.Your feedback will be a huge help in shaping the future of the game.We can’t wait to meet you in Tokyo and show you what we’ve been working on! 🚀Read full article on Community Announcements (Pearplay)
