Tron: Deadly Discs is a 1982 action video game developed and published by Mattel Electronics for the Intellivision. It is the first of three Intellivision games based on the Disney film Tron. The player takes the role of Tron, fighting successive waves of enemy Disc-throwers and Recognizers in a never-ending quest to achieve the highest score. The initial game design was done by Don Daglow, with further design and programming by Steven Sents.

Mattel released an Atari 2600 version of the game under its M Network label in 1983, and the game was later ported to the Mattel Aquarius.

As Tron, the player controls a red man with a yellow Disc. He is pitted in a square arena with black walls. Enemies will appear through doorways and throw their Discs at him. The player has to eliminate all the enemies with his own Disc, as well as surviving bonus rounds against the Recognizer.

The player can throw the Disc in eight directions. When thrown, the Disc first appears as a thin horizontal line and can only move in a straight line. While in this mode, Tron's Disc (and any other Disc thrown in the game) can inflict damage, and can also "lock" doors. When it reaches the wall (or when the player calls the Disc back by hitting any directional throw button), it automatically floats back to the player and appears as a square. It is harmless in this mode.

Unlike enemy Disc-throwers, Tron can block enemy Discs with his own. When an enemy Disc is blocked, it is destroyed and the enemy is temporarily disarmed until a replacement Disc floats in ten seconds later.

The doorways enemies appear in can be jammed so that they remain open between waves. Doorways appear blue when they first open, but will turn green if Tron either hits them with his Disc or runs into them. Blue doors close at the end of the current wave of enemies, but green ones remain open. If two doors directly across from each other are jammed open, Tron can run into one and immediately reappear at the other, allowing for easier dodging and Disc retrieval. Enemies cannot use the doors in this manner.

If Tron warps through a pair of doors, a Recognizer will appear on the field after the wave is over and begin closing all jammed doors. The player can score bonus points by hitting the Recognizer's eye in a vulnerable spot; doing so forces it off the field and leaves any jammed doors open.

The game ends if Tron touches a Recognizer, takes too many hits from enemy Discs without enough time to recover from them, or is hit by a paralyzing baton that enemies carry in advanced waves.