OpenXcom Extended

OpenXcom Extended takes the beloved UFO defense formula and pushes it further. Rather than a simple port, it layers on a wealth of new content, thoughtful refinements, and community-driven polish. You oversee a sprawling global network of bases, manage resources, and send your troops into tense, grid-based firefights where every shot counts. The game rewards careful planning, from base layout to soldier loadouts, and each mission feels like a puzzle where positioning is key. The expanded toolkit introduces exotic weaponry, additional alien species, and smarter AI, raising the stakes for veterans while remaining accessible to newcomers. The strategic layer is deep, with research trees, manufacturing, and diplomatic choices that ripple through the campaign. Simultaneously, the tactical missions offer a satisfying mix of stealth, suppression, and explosive action. Whether you are a series veteran or a curious newcomer, the extended edition provides dozens of hours of tense, rewarding gameplay that honors the original while modernizing the experience for today's players.

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OpenXcom Extended

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MP3Argue with math MP1Make sense of problems MP5Use tools strategically MP7Use structure 7.NS.A.2Multiply and divide rationals N.VM.B.5Scalar multiplication F.TF.A.3Special triangles 8.G.C.9Volume of round solids

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What is OpenXcom Extended

Defend Earth from an unknown extraterrestrial threat in this expanded turn-based tactical game. Build your strategy, research advanced technology, and lead your soldiers through dangerous encounters.

How to Play

Manage your base's facilities and production between missions, then deploy squads to engage aliens in top-down, turn-based combat. Use line of sight, cover, and tactical abilities to outmaneuver your opponents.

Tips for Playing

Always scout with a fast unit before committing your main squad, as aliens often set up ambushes.
Prioritize research on new armor and weapons early to keep your troops competitive.
Assign your soldiers specialized roles, such as sniper or grenadier, to cover each other's weaknesses.
Keep your base well-stocked with ammunition and medical supplies before heading out on extended campaigns.
Pay attention to alien corpse reactions—sometimes it is wiser to retreat and regroup than risk casualties.

Frequently Asked Questions

Is OpenXcom Extended a standalone game or a mod?

It is a standalone project based on the original X-COM: UFO Defense, with a built-in mod called 'OpenXcom Extended' that adds new features and content. You can run it directly without the original game files.

Can I customize my soldiers and base layout?

Yes, you can rename and equip your soldiers, and you have full control over base construction, including hangars, labs, and living quarters. Strategic placement affects efficiency.

What types of missions are there?

There are ground combat missions, base defense sieges, and air interception battles. Each presents different tactical challenges and reward special resources.

Does the game have a multiplayer mode?

No, it is primarily a single-player experience. The focus is on the long-term campaign against alien invasions.

Is it necessary to play the original X-COM first?

Not at all. While fans will spot many familiar elements, the game includes helpful tutorials and tooltips that make it accessible for newcomers.

How long is a typical playthrough?

A complete campaign can last anywhere from 20 to 40 hours, depending on difficulty and how thoroughly you explore research trees and side missions.