**** COMMODORE 64 BASIC V2 ****
64K RAM SYSTEM 38911 BASIC BYTES FREE
READY.
LOAD "ERMULATOR",8,1
SEARCHING FOR ERMULATOR... FOUND ERMULATOR... LOADING... READY.
Commodore 64 (TM) eRmulator icon

Commodore 64â„ĸ eRmulator

Pure cycle-accurate Commodore 64 (TM) emulation for modern platforms.

v0.10.7 Beta Cloud Online Apache 2.0 (Non-GPL)
Join Beta Testers Get on AltStore Downloads (Closed Beta)

đŸ“Ļ AltStore & Sideloading Source

Install c64ermu natively on iOS & iPadOS without jailbreaking.

Add c64ermu as an Official Source

Add our community source repository to AltStore Classic or AltStore PAL to receive automated updates directly on your device.

⚡ Add to AltStore Classic đŸ‡ĒđŸ‡ē Add to AltStore PAL đŸ“Ĩ Download IPA (Beta)
ℹī¸ Closed Beta Testing: iOS builds distributed through AltStore are part of our Closed Beta testing phase. Official Apple App Store release is available soon.
Source URL: https://c64ermu.com/altstore/source.json
Important Note for EU / AltStore PAL Users:
Under Apple's EU DMA rules, AltStore PAL requires an Apple-assigned marketplaceID for sources. If you encounter a "missing marketplace ID" error when tapping the link, copy the Source URL above and paste it directly into AltStore Classic, or download the direct IPA file above and sideload it.

🚀 Join the Beta Tester Program

Get early access builds for iOS, macOS, Windows, Linux, and Android.

⚙ī¸ Emulation Architecture

Engineered from the ground up for absolute cycle accuracy and 100% clean-room independence.

🧠

Multi-CPU Execution

MOS 6510 core with illegal opcode parity, WDC 65816 20MHz SuperCPU accelerator, and Zilog Z80 CP/M cartridge coprocessor.

đŸ“ē

Cycle-Accurate VIC-II

Pixel-perfect raster line rendering with mid-line badline timing, sprite multiplexing, DMA memory steals, and CRT phosphor shaders.

đŸŽĩ

Clean-Room SID Audio

Clean-room Apache 2.0 dual & triple SID audio synthesizer for 6581 and 8580 chips. No viral GPL code in store builds.

💾

Full Peripherals & Drives

True 1541, 1571, 1581 floppy drive emulation, CMD FD-2000/4000 high-density drives, JiffyDOS, DolphinDOS, Tapecart, and SD2IEC.

âĒ

Time Travel Live Rewind

60-second instant live gameplay rewind with visual VHS tape distortion effects and scrub audio. Never lose a difficult level again.

📜

SoftKernal ROM Suite

Zero copyrighted Commodore ROMs required. Boot copyright-free out of the box with built-in Simons' BASIC / TSB command extensions.

🏆 Community High Scores (Preview)

Cloud-synchronized leaderboards and upcoming multiplay capabilities powered by Google Cloud & Firestore.

Top Retro High Scores

Rank Player Game Score Verified Date

🌐 Online Services Roadmap

Leaderboard synchronization, cloud save states across iOS and macOS, and peer-to-peer Netplay are actively being developed for future releases.

đŸ’ģ Platform Downloads

c64ermu is built in standard C++20 and runs natively across all major desktop and mobile operating systems.

⚠ī¸
Public Downloads Available Soon • Closed Beta Active For All Platforms

General public downloads are currently unavailable. Direct binary downloads for all platforms (macOS, Windows, Linux, Android, and iOS) are strictly restricted to accepted testers enrolled in our Closed Beta Program. Please join the beta program below to request access, or enter your authorization link to unlock downloads.

🔐

Authorized Closed Beta Access

Direct binary downloads (macOS DMG, Windows EXE/ZIP, Android APK, Linux) require tester authorization.

📱
Beta Testing • Available Soon

iOS / iPadOS

AltStore & Sideload

Sideload / Install Public App Store release available soon
🍎
Beta Only • Available Soon

macOS

Native Metal AppKit

Download .dmg (Beta) Available soon • Requires beta authorization
đŸĒŸ
Beta Only • Available Soon

Windows

Native 64-bit EXE

Download .zip (Beta) Available soon • Requires beta authorization
🐧
Beta Only • Available Soon

Linux Flatpak

Freedesktop Runtime

Download Flatpak (Beta) Available soon • Requires beta authorization
🤖
Beta Only • Available Soon

Android

APK & Google Play

Download APK (Beta) Public Google Play release available soon
🌐
Live Web Player (Beta)

WebAssembly

Instant in-browser player & embedding

â–ļ Play Online Now Download WASM SDK (Beta)
Play free online • Embedding SDK requires beta authorization