In this introduction to the BattleTech game and universe, players each take control of one giant walking war machine (a BattleMech, aka 'Mech) and battle until one is destroyed or until the scenario objectives being played are completed.

In 2019 the old BattleTech Introductory Box Set was replaced by two all-new box sets. The first of these is the Beginner Box. More affordable than the old box, it comes with two 'Mech miniatures (made to a higher quality level than the previous generation of box set miniatures) and special simplified "Quick-Start Rules" for 'Mech combat designed to teach the game quickly to newcomers. The most notable changes are that the Quick Start Rules omit heat generation and management, critical hits, and the "Inner Structure" of the mech. The intended follow-on box from this is the "A Game of Armored Combat" (2019) box. In 2022 the Beginner box was updated and reprinted. As a result the included Wolverine was replaced with a Vindicator.

Contents:
2 fully assembled (un-painted) miniatures (Griffin & Vindicator)
18″ x 22″ full-color game map (double-sided)
Die-cut 'Mech & terrain tokens
Quick-Start Rules
Universe booklet
24-page fiction novella, "Golden Rule"
Record Sheets
MechWarrior cards
Two six-sided dice