Mortal Sin Steam Purchase Guide
Mortal Sin is available on Steam, developed and published by Nikola Todorovic. The game launched in full on August 30, 2025, after an Early Access period beginning March 15, 2023. This guide covers how to buy the game, system requirements, supported languages, Steam features, and CD key information.
How to Buy Mortal Sin on Steam
Mortal Sin is available exclusively on Steam for PC. You can purchase it directly from the official Steam store page. The game is a single-purchase title — there are no microtransactions or battle passes. Once purchased, you own the game permanently, with all future updates included for free.
To buy the game, visit the Steam store page using the button above. The link will automatically display the store page in your preferred language based on your current locale. The game supports Steam Cloud, Family Sharing, and full Xbox controller support.
CD Key and Key Information
Mortal Sin is a paid Steam game. There is no standalone CD key or redemption code system — the game is purchased directly through Steam. If you see websites offering "Mortal Sin CD keys" or "Mortal Sin PC keys" at unusually low prices, exercise caution. The safest way to purchase is through the official Steam store page.
Steam occasionally runs sales where the game may be available at a discount. Check the Steam store page for current pricing and any active promotions. The game is also eligible for Steam Family Sharing, allowing you to share your library with family members.
System Requirements
Mortal Sin has very accessible system requirements, running on older hardware. The game requires only 3GB of storage space and DirectX 11.
Minimum: Windows 7+, Intel Core i5-2500K, 8GB RAM, GeForce GTX 670, DirectX 11, 3GB storage.
Recommended: Windows 10+, Intel Core i5-6600K, 8GB RAM, GeForce GTX 1060, DirectX 11, 3GB storage.
Supported Languages
As of the June 2026 update, Mortal Sin supports 10 languages: English, Russian, Simplified Chinese, French, Spanish - Spain, German, Japanese, Korean, Polish, and Portuguese - Brazil (interface only). The Steam store page can be viewed in different languages using the language parameter.
The game's Steam page adapts to your locale. If you're browsing from a German, French, or Russian locale, the Steam link on this wiki will automatically include the appropriate language parameter.
Steam Features
Mortal Sin includes the following Steam features: Single-player mode, 47 Steam Achievements, Steam Cloud saves, Family Sharing, and Full Controller Support (Xbox). The game is tagged on Steam with First-Person, Action Roguelike, Dungeon Crawler, Hack and Slash, RPG, Indie, Dark Fantasy, Roguelite, Procedural Generation, and more.
The 47 Steam Achievements provide long-term goals for completionists. Steam Cloud ensures your save data syncs across devices. Full Xbox controller support means you can play comfortably with a gamepad without any configuration.
Release History
Mortal Sin entered Steam Early Access on March 15, 2023. The full 1.0 release came on August 30, 2025. The most recent update, in June 2026, added 5 new languages and 8 new unique items. The game has accumulated over 5,566 total reviews on Steam, with English reviews at 95% positive (Overwhelmingly Positive).
Recent reviews are Mostly Positive (75% of 36), reflecting the ongoing post-launch support and community engagement. The developer Nikola Todorovic maintains active community channels on YouTube and Discord.
Press Quotes
PC Gamer: "Really, it's a must-buy, even in early access." TheGamer: "It's fast-paced, brutal, has an extremely unique art style." These quotes reflect the critical reception that has accompanied Mortal Sin throughout its development and into full release.