Classic Games and Software For The TI-99/4A And Emulators

Gamma Radiation Games brings authentic retro gaming experiences and software solutions to collectors and enthusiasts who love classic computing.

Gold Star Blazers logo and a small red and white spaceship against a starry background.

Star Blazers: Space Battleship Yamato

Battle Gamilons on your way to Iscandar to save the Earth from deadly radiation!

Retro 1981 Texas Instruments Home Computer startup screen with colorful bars and a blue background.

TI 99/4A: the first 16 bit home computer with 16 colors

Retro 8-bit game screen featuring a white pixel character and snowflakes on blue background.

Seasons of Change

Collect seasonal items in the order they appeared on the screen before the timer runs out!

Catalog page for TI-99/4A home entertainment programs featuring various video games, descriptions, and prices.

Page from Triton TI 99/4A Products Catalog

Vintage Texas Instruments TI-99/4A home computer system with a CRT monitor and expansion unit.

TI 99/4A with PEB, Monitor and Speech Synthesizer

Bill Cosby in a striped sweater promoting the Texas Instruments TI-99/4A home computer system.

Bill Cosby: OG TI Spokesman

Before he went to prison, he let you know "this is the one".