RetroAchievements Ends NetherSX2 Hardcore Achievements Support

---

NetherSX2 is set to lose Hardcore verification soon, which effectively means no more Hardcore RetroAchievements support for your PS2 games on that emulator. If you are deep into RetroAchievements, you already know what that means. If not, it basically means your “legit trophy hunting” runs are about to get more complicated.

What is changing

RetroAchievements uses two modes. Softcore and Hardcore.

Softcore lets you use emulator features like save states. Hardcore is the strict mode where you are supposed to play as close to original hardware rules as possible. No savestates. No rewind. No cheats.

And the official RA documentation is very clear about this. Hardcore mode must enforce strict rules like disabling save states, cheats, rewind, and other game altering features to be considered compliant .

Now here is the problem.

Not all emulators keep up with those compliance rules forever, and according to the current discussion, NetherSX2 is heading out of the “Hardcore verified” club. If NetherSX2 is stepping back from Hardcore support, attention immediately moves to ArmSX2, which is being positioned as the modern replacement in the PS2 Android emulation space.

NetherSX2 is based on AetherSX2, which itself stopped active development a long time ago. That alone creates a problem in RetroAchievements land.

RA Hardcore support is not static. It changes over time. Emulators must keep up with new rules, fixes, and compliance checks. If they do not, they slowly fall out of “approved” status or get downgraded.

What this means if you are still using NetherSX2

Well, nothing breaks overnight.

• Softcore achievements still work
• Games still run

However, Hardcore progression and mastery tracking is where things start to break.

For many gamer hardcore is the whole point of using RetroAchievements, because it is what gives you mastery status and leaderboard recognition.

Transition to ArmSX2

The other side of this story is ArmSX2. It is becoming the recommended direction for PS2 emulation on Android, especially for users who care about stuff like this. The community discussion already shows people switching over and testing performance differences, driver support, and frontend compatibility.

It is not a perfect replacement yet. Some users mention UI confusion and frontend integration issues, but it is actively developed, which is the key difference.

NetherSX2 will lose the Hardcore verification around mid July 2026, with the enforcement window tied to the platform’s rolling emulator compliance rules and the 2-year support / activity policy used for Hardcore eligibility.