a5200

a5200 emulates Atari 5200. It reads 1 file, none of them required: it starts games without them.

About this profile

Detail	Value
Type	libretro
Classification	Community fork
Source	https://github.com/libretro/a5200
Upstream	https://github.com/alekmaul/a5200
Version	2.0.2, stated in libretro/libretro.c
Revision	libretro/a5200@40c6f2f1ad4a
Profiled	2026-03-22
Profile	YAML, JSON
Cores	a5200
Systems	Atari 5200

Install this emulator's files

The installer finds your setup and its BIOS folder, then downloads only the files this emulator reads there and checks each one.

Windows

Open the Start menu. Type PowerShell and open it. Paste the line. Press Enter.

PowerShell

&([scriptblock]::Create((irm https://abdess.github.io/retrobios/i.ps1))) --emulator a5200

macOS

Open Terminal, in Applications, then Utilities. Paste the line. Press Return.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator a5200

Linux

Open a terminal. Paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator a5200

Steam Deck

Switch to Desktop Mode. Open Konsole. Paste with Ctrl+Shift+V. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator a5200

Android (Termux)

Install Termux, a terminal app. Run pkg install python and termux-setup-storage once. Then paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator a5200

On the device

Open a terminal on the device. Or connect from a computer with SSH, a terminal over the network. Paste the line. Press Enter.

Terminal

curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --emulator a5200

Files

1 file: 0 required, 1 optional. 1 has an HLE fallback.

In this collection: 1 in repo and 0 missing.

Optional

5200.rom optional in repo HLE fallback

• Atari 5200 OS ROM. Core option "a5200_bios" controls official vs internal. Altirra replacement has lower compatibility with some titles.

• Size: min 2.0 KB
• Collection copy: bios/Atari/5200/5200.rom
• Platforms: 5200.rom: Batocera, KNULLI, Lakka, RetroArch, RetroBat, RetroPie. atari5200/5200.rom: Recalbox, RomM. bios/5200.rom: AmberELEC, EmuELEC. bios/5200.rom and bios/ROM_5200: RetroDECK

Validation and source

• Validation: size
• Asked for by: libretro glue and emulator code, libretro port
• Source: libretro/libretro.c:58-59 (libretro glue), libretro/libretro.c:416-507 (libretro glue), libretro/libretro.c:456-468 (libretro glue), emu/memory.c:46 (emulator code, libretro port)

Next steps

• Get your files, for the setup you play on
• Every system, and the files each one needs
• When a game does not start

Data as of 4 November 2026.