X-COM: UFO Defense

X-COM: UFO Defense came out in 1994. In Europe it was called UFO: Enemy Unknown, and the two titles name the same game. The player runs a secret international organization defending Earth from an alien invasion. It is really two games joined together. One is a view of the whole planet, where you build bases, pay for research, and send aircraft after unidentified craft. The other is a fight on the ground, where you command a small squad one soldier at a time. Each one decides what you have to work with in the other.

The planet view is called the Geoscape, and it runs on a clock you can pause or speed up. Radar picks up craft crossing the globe. You scramble interceptors to shoot them down or send a transport to wherever one lands. Between missions you manage bases laid out on a small grid, with laboratories, workshops, hangars, and quarters for your people. Scientists study whatever you bring home, from captured weapons to alien bodies to live prisoners, and each discovery changes what you can field next. The nations that fund you judge you by results.

The ground fight is called the Battlescape, and it is turn-based. Every soldier has a number of time units each turn, and every action spends them: walking, turning, kneeling, firing, reloading, opening a door. Hold some back and that soldier can shoot during the enemy's turn. Maps are assembled fresh for each mission, darkness hides what is waiting, and explosives open walls. A soldier who dies stays dead. Those who survive improve with each mission, until the veterans are the ones you can least afford to lose.

It did not invent every piece. Julian Gollop's earlier games Rebelstar Raiders (1984) and Laser Squad (1988) already ran squad combat on action points, and X-COM began as a planned sequel to Laser Squad. What it added was a reason to care about the outcome. It put that combat inside a campaign, so a mission was no longer a puzzle to solve and set aside. The soldiers who came back, the wreckage you hauled home, and the people you lost all went with you into the next mission.

Its strongest idea was the loop between the two layers. Research, manufacturing, and funding decided what soldiers carried into a fight. What they recovered decided what you could study next. A mission's cost was the equipment and lives spent, and its reward was salvage, prisoners, and knowledge. Firaxis's XCOM: Enemy Unknown (2012), Goldhawk's Xenonauts (2014), and Snapshot's Phoenix Point (2019) all rebuilt on that structure, and each one is still arguing with the original.

Inside the fight, time units made every action a purchase. A step toward cover was a step you could not spend on a shot, and holding time back for the enemy's turn made patience a tactic. Because deaths were permanent and survivors improved, the squad stopped being a pool of interchangeable units. Players grew attached to particular soldiers, protected them, and mourned them. The genre inherited that attachment as much as it inherited any rule.

RAD Tactics is a squad tactics game, and every squad tactics game has to answer the question X-COM answered: how one player can command several people at once and still make each of them matter. X-COM answered with turns and a budget of time units. Real-time with pause, the form we work in, is a different answer to the same problem. The problem does not change. The player's attention has to be scarce, orders have to cost something, and the squad has to read as individuals.

This is where the lineage stops and our own game begins, and we are keeping this page to the lineage. X-COM is the origin point that the late-nineties games argued with, keeping some of its answers and throwing out others. What it proves is that a squad game can carry weight beyond a single mission, and that players accept hard loss when it is legible and fair. That is a standard we hold ourselves to.

We remember the end of a turn more than any victory. A sergeant who has survived a dozen missions stands at the corner of a farmhouse in the dark, with time units held in reserve. You end the turn and there is nothing left to do but watch. Somewhere off screen something moves. The view cuts to the aliens, and you find out whether your last decision was a good one. Very few games make doing nothing feel like that.

The other moment is quieter. A mission goes badly, two soldiers do not come home, and the debriefing lists what was recovered. Then you are back at the base, with a prisoner in the cells, a laboratory waiting on what you carried in, and two names gone from the soldier list. It is the calmest screen in the game, and it is where you decide whether to send the next squad out. We always do.