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Head-to-head · Commodore 64 Emulators

CCS64 vs Denise

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score CCS64 #6 in Commodore 64 Emulators 8.3/10 Free plan Free plan✓ 2 of 3 features Visit CCS64
Denise #7 in Commodore 64 Emulators 8.1/10 Free plan Free plan✓ 0 of 3 features Visit Denise

CCS64 leads on 0 checks, Denise on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCCS64 · 8.3/10
  • Free planboth
  • Most featuresCCS64 · 2 of 3

CCS64 scores higher on our rubric for commodore 64 emulators: 8.3 against 8.1 out of 10; our editors rank them #6 and #7.

CCS64 is the better fit for users who want netplay and deep debugging. Denise is the better fit for users wanting both Amiga and C64 emulation.

  • CCS64 fits best

    Users who want netplay and deep debugging

  • Denise fits best

    Users wanting both Amiga and C64 emulation

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Side by side

Feature CCS64 8.3/10 Visit ↗ Denise 8.1/10 Visit ↗
At a glance
Editor score 8.3 8.1
Ranking #6 in Commodore 64 Emulators #7 in Commodore 64 Emulators
Best for Users who want netplay and deep debugging Users wanting both Amiga and C64 emulation
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, Linux Windows, macOS, Linux
Support Email, Community, Docs Docs, Tickets
Built for Solo, Small business Solo, Small business
Features CCS64 2/3 · Denise 0/3
Built-in debugger ✓ (best) Not checked yet
Netplay support ✓ (best) Not checked yet
Bundled software library Not checked yet Not checked yet
Specs
Supported platforms Windows, DOS, Linux, Unix Not checked yet
Disk and tape formats PRG, P00, T64, TAP, D64, G41, G64, CRT Not checked yet
Emulated C64 variants European and USA systems; VIC-II 6566, 6567 and 6569 Not checked yet
Our review
Pros
  • Time-travel debugging with forward and backward machine-code tracing
  • Supports disk, tape, cartridge, joystick, mouse and paddle emulation
  • Internet multiplayer through the Kaillera client
  • Cycle-accurate emulation for Commodore 64 and Amiga systems
  • Save states, rewind, RunAhead and shader-based rendering
  • Amiga debugger, disassembler and configurable memory options
Cons
  • Current downloads list Windows and Linux builds only
  • Netplay depends on the Kaillera client
  • Documentation is titled CCS64 V4.0 while downloads list V4.1
  • Its feature set may be more than C64-only users need
  • C64-specific media support is less fully documented
  • Kickstart ROM files are documented separately from preinstalled AROS firmware
Our verdict

CCS64 is a Commodore 64 emulator for PC, aimed at users who want more than basic game playback. It emulates the C64 keyboard and regional systems, up to four 1541 disk drives, the C2N cassette recorder, cartridges, joysticks, paddles,…

Read the review →

Denise is a free, open-source desktop emulator for Commodore 64 and Amiga systems. It suits users who want both platforms in one application, especially those interested in Amiga configurations from the A1000 through the A600 alongside…

Read the review →
  1. CCS64Commodore 64 Emulators 8.3Free plan
  2. DeniseCommodore 64 Emulators 8.1Free plan

Strengths and trade-offs

  • CCS64 — where it wins

    • Time-travel debugging with forward and backward machine-code tracing
    • Supports disk, tape, cartridge, joystick, mouse and paddle emulation
    • Internet multiplayer through the Kaillera client

    Where it doesn't

    • Current downloads list Windows and Linux builds only
    • Netplay depends on the Kaillera client
    • Documentation is titled CCS64 V4.0 while downloads list V4.1

  • Denise — where it wins

    • Cycle-accurate emulation for Commodore 64 and Amiga systems
    • Save states, rewind, RunAhead and shader-based rendering
    • Amiga debugger, disassembler and configurable memory options

    Where it doesn't

    • Its feature set may be more than C64-only users need
    • C64-specific media support is less fully documented
    • Kickstart ROM files are documented separately from preinstalled AROS firmware

More comparisons

All commodore 64 emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update