Documented for this version

Which controls does this version use?

Actions

UFO: Enemy Unknown action controls
Left Mouse Button
Select, move, or confirm an interface command
Right Mouse Button
Cancel or return from a menu

Control notes

  • The DOS version primarily uses the mouse-driven interface.

  • Exact keyboard shortcuts can vary by manual and release revision.

How it plays

How does UFO: Enemy Unknown play?

The Geoscape presents Earth as a strategic map. The player monitors UFO activity, launches interceptors, manages bases, allocates research and manufacturing, and negotiates the organization’s finances with sponsoring nations.

Tactical missions take place on destructible maps viewed from an overhead perspective. Soldiers spend Time Units to move, aim, fire, use equipment, and interact with terrain. Missions award recoverable equipment and experience, while casualties, panic, funding changes, and research progress shape later operations.

Plan your run

What is the best way to play UFO: Enemy Unknown?

Protect veteran soldiers, because experienced troops become substantially more effective than new recruits. Improve base defenses and keep interceptors supplied, but avoid exhausting the budget on too many aircraft early.

Research alien artifacts and interrogate live aliens as soon as practical. On missions, use cover, preserve Time Units for reactions, check line of sight carefully, and avoid clustering troops near explosives or doors.

Before you begin

What should you know before playing?

  1. 1

    Save before interceptions and tactical missions; outcomes and casualties can permanently affect the campaign.

  2. 2

    Use kneeling, cover, and controlled bursts when available rather than moving every soldier as far as possible.

  3. 3

    Build a balanced roster and train replacements before relying on a small group of veterans.

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