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XCOM

A tactical strategy game with hit-chance percentages.

App Store1 source

Where XCOM comes up1 episode or test

Gcreator of Game Maker's Toolkit testThe 100 Games That Taught Me Game Design
At a glanceA bad die roll can ruin XCOM's carefully made plans
  1. 1Make a planPlayer plans around the shown odds
  2. 2See hit chanceScreen shows 80%, code closer to 90%
  3. 3Die roll decidesChance only sets the odds
  4. 4Plan can collapseA bad roll wrecks the plan

From Mark Brown's game design lessons

What was said about XCOM

  • XCOM shows hit chances, then a die roll can wreck the plan. The game displays a hit chance and then a die roll decides the outcome, so a bad roll can ruin a carefully made plan. The on-screen 80% is closer to 90% in the code.

    Designer Jake Solomon regrets hit chances. The source is about Mark Brown's game design lessons and mentions XCOM only in passing.

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