CoSMOS

CoSMOS is a free game-memory editing tool for players who want to make their own changes rather than wait for a trainer. It suits both newcomers and experienced gamehackers, with separate PC and Steam Deck versions. Its broad toolset and Cheat Engine table support make it a capable choice for offline experimentation, but not for online or multiplayer play.

Overview

CoSMOS is a self-service gamehacking tool from Dingo WebWorks, LLC/Cheat Happens, formed in 2001. It is intended for players who want to modify their own games, with a beginner route alongside tools for creating and sharing scripts. That range is useful, though the distinct versions mean buyers should choose by platform and experience rather than expect one interface everywhere.

CoSMOS can read and import 99% of Cheat Engine tables, a practical advantage for users bringing existing tables with them. Hardware-accelerated scans support memory searches. Cheat Happens advises using cheats and trainers offline only and does not make cheats for online or multiplayer games, so CoSMOS is the wrong tool for networked play.

Key features

Separate routes for beginners and Steam Deck

PC CoSMOS Beginner is integrated into Cheat Happens Aurora software, which gives newcomers a beginner-focused way in. The native Steam Deck version works with Linux and Steam Deck and pairs a simplified memory scanner with a built-in disassembler. That makes it a more focused option for handheld use than the extensive PC Advanced toolkit.

PC Advanced toolset

PC CoSMOS Advanced combines a memory scanner with a VEH debugger, script engine, disassembler, dump viewer and speedhack. It also includes a .NET assembly explorer, reference search, process viewers and a script editor. Experienced users get a substantial set of tools for memory work and script creation; beginners who only need simplified scanning may find this breadth unnecessary. The PC Advanced page lists version 6.1.5.

Debugger and scripting support, along with support for both architectures, broaden its appeal to users who want to move beyond basic scanning. Cheat Happens provides free technical support through the CoSMOS message board. CoSMOS checks for new versions without sending personal information; feedback and crash-log submissions are optional and may contain personal information.

Pricing

CoSMOS costs nothing, billed 100% FREE. The plan requires no registration and has no locked features, adware or hidden software. Beginners can use the free offering to start with PC CoSMOS Beginner, while experienced users can access the deeper PC Advanced toolset without paying for a separate tier. There are no stated seat or quota limits.

Platforms

CoSMOS is available for Linux and Windows. The native Steam Deck version works with Linux and Steam Deck; PC CoSMOS Beginner and PC CoSMOS Advanced serve PC users. The Steam Deck build's simplified scanner and built-in disassembler make it the more specific fit for handheld use, while Advanced is the choice for a broader PC toolset.

Who it's for

CoSMOS fits players who want to modify their own games offline, whether they are new to memory editing or experienced enough to build and share cheat scripts. Existing Cheat Engine table users have a reason to consider it because it imports 99% of those tables. It is not suitable for people seeking cheats for online or multiplayer games.

Pros and cons

• Pros: The free plan has no registration requirement, locked features, adware or hidden software, lowering the barrier to trying the tool.
• Pros: Import support for 99% of Cheat Engine tables helps users carry existing work across.
• Pros: A native Steam Deck version and a separate, extensive PC Advanced toolkit address different use cases.
• Cons: The Steam Deck scanner is simplified, so users seeking the full range of advanced tools should choose PC CoSMOS Advanced instead.
• Cons: Its stated use is offline game modification, ruling it out for online or multiplayer play.

Alternatives

Game Memory Editors is the category to browse when comparing tools for memory editing. For ready-made options rather than modifying a game yourself, see Game Trainers.

• chromedp is a free, open-source Go package for readers who want an API-oriented option across Linux, macOS, Windows and self-hosted environments; it requires Go 1.25 or newer.
• DOSBox Cheat Engine is a free, open-source option for DOSBox Staging users, and requires version 0.83 or newer.
• ReClass.NET is a free, open-source Linux and Windows alternative supplied without warranty.
• scanmem is a free, open-source option for Android or Linux, with GPLv3 licensing and an LGPLv3 license for libscanmem.
• MemDBG is a free option for readers who want a tool spanning Android, iOS, Linux, macOS and Windows.
• PINCE is a free, open-source Linux reverse engineering tool for Linux-only users.
• ProMod offers a free iOS and macOS alternative; its ProMod Mobile plan supports up to 6 mods toggled on at a time.
• ArtMoney is a Windows alternative with a free SE edition that has some features unavailable, while PRO costs $24.90, paid once.

Verdict

Choose CoSMOS if you want a free, capable way to modify games offline, especially if you use Cheat Engine tables or need a native Steam Deck version. Its distinct beginner and advanced PC options also let users choose between a focused entry point and deeper debugging and scripting tools. Look elsewhere if your goal is online or multiplayer cheating, or if you need a tool for an operating system outside Linux and Windows.