XCOM: Enemy Unknown

XCOM: Chimera Squad launched on April 24, 2020, introducing a new story set within the XCOM universe. This standalone title brought several significant gameplay innovations alongside its narrative, including a suspenseful strategy layer and a re-envisioned tactical combat system.

• New Gameplay Mechanics:
  • Breach Mode: Players could now shape the battlefield by assigning agents to different entry points during a new combat phase.
  • Interleaved Turns: An automatic initiative system added strategic depth by altering the turn order of agents and enemies.
  • Specialized and Complementary Classes: Players executed powerful combos by teaming agents with distinct abilities.

• Unique Content:
  • Setting: The game was set in City 31, a model of peace in the post-invasion world, featuring 11 unique alien and human agents with their own personalities and tactical abilities.

• Launch Promotions:
  • A launch discount was offered for XCOM: Chimera Squad to celebrate its release.

XCOM 2 was announced on June 1, 2015, bringing significant new gameplay features and mechanics to the franchise. The sequel will introduce procedurally-generated levels, five updated soldier classes, and enhanced soldier customization. Players will also experience XCOM's role reversed, as they take on the role of the invading force against aliens.

• New Gameplay Features: XCOM 2 will feature procedurally-generated levels, deeper modding support, and evolved tactical combat mechanics.
  • Players will utilize firepower and stealth tactics in combat.
• Expanded Modding Support: XCOM 2 will provide a much deeper level of modding support, allowing for greater customization.
• New Alien and Enemy Types: The sequel will introduce more alien and enemy types, enhancing tactical combat and gameplay variety.
• Updated Soldier Classes: XCOM 2 will include five updated soldier classes, increasing customization options for players.
• XCOM's Role Reversed: Players will experience XCOM as the invading force against aliens, shifting the gameplay dynamic.
• XCOM 2 Release Date Announcement: The game is scheduled for release in November 2015.

XCOM: Enemy Unknown - The Complete Edition launched on March 7, 2014, bundling the base game, XCOM: Enemy Within, and all previously released content. This major release marked a significant enhancement for players returning to the game. Additionally, the game received touch controls and new second wave options unlocked through Steam achievements, adding fresh mechanics to the gameplay.

• Major content drop: The Complete Edition released on March 7, 2014, including all expansions and add-ons.
• New content:
  • Touch controls were introduced on February 26, 2014, allowing for a new way to interact with the game.
  • Second wave options were unlocked based on Steam achievements as of February 26, 2014, providing new gameplay challenges.
• Balance changes:
  • Adjustments were made to mimetic skin on February 26, 2014.
  • The Foundry project Pistol I was applied to both Laser and Plasma Pistols on February 26, 2014.
• Gameplay improvements: A pause button was added to both strategy and tactical modes on February 26, 2014, enhancing player control during critical moments.