BC4000: Civilization 4X2.4.0 - App Store

Begin in 4000 BC with a settler and guide your people from stone tools to the Space Age. BC4000 is a turn-based 4X strategy game where you explore the world, found cities, research technologies, conduct diplomacy, and compete with rival civilizations for supremacy.

- From Antiquity to AD 2100: Advance through eras, from pre-Bronze Age to Space Age.
- Deep Strategy: Balance growth, science, culture, faith, gold, and military power.
- World Exploration: Scout the map, discover natural wonders, and plan perfect city sites.
- Diplomacy & Trade: Make friends, rivals, pacts, and mutually beneficial deals.
- Fully Offline: Play anywhere, any time-no account required.

Inspired by the classic Civilization series, the game uses graphics, music, maps, and text sourced from the public domain or under Creative Commons / MPL licenses. Full attributions are listed on the project site’s license page.

For details on how the app works and how your data is protected, please review:
Service Terms: https://drwjf.github.io/bc4/terms.html
Privacy Policy: https://drwjf.github.io/bc4/privacy.html

Version History - Fixed a crash that could occur when a unit was promoted during turn processing. 2.4.0 Oct 5 - Fixed a crash when starting to edit a map using the Second Ruleset. 2.3.9 Oct 1 - Added an advisor with gameplay recommendations.
- Added a city list grouped by nation (Second Ruleset). 2.3.8 Sep 25 Fixed an issue when a city was completely destroyed during an attack. 2.3.7 Sep 17 Fixed a crash introduced while improving turn-processing speed and combat strategy. 2.3.6 Aug 9 - Fixed a crash that could occur when starting a new game with a second ruleset.
- Improved turn-processing performance for faster gameplay.
- Enhanced AI combat strategy. 2.3.5 Aug 5 Fixed a crash when tapping Continue too quickly in the New Game screen. 2.3.4 Jul 16 Fixed an issue that could overwrite an existing save when starting a new game with the same settings. 2.3.3 Jul 10 Added support for iPad portrait mode 2.3.2 Jun 30 Built with Xcode 26 and the iOS 26 SDK 2.3.1 May 20 Performance improvements 2.3.0 Apr 13 Added Nearby Resources list. 2.2.9 Mar 21 Fixed visual issues affecting roads and resource display. 2.2.8 Feb 5 Fixed issues related to city capture. 2.2.7 Jan 19 Refined unit icons for improved clarity and consistency. 2.2.6 Jan 6 Fixed an issue where spies from defeated civilizations could still interfere with elections in other civilizations. 2.2.5 12/24/2025 - Resolved an issue affecting target-tile calculation for ranged units.
- Resolved an issue where units did not properly receive effects granted by wonders. 2.2.4 12/13/2025 - Resolved an issue affecting the flat-earth map shape
- Fixed a crash that occurred during spy technology-steal actions 2.2.3 12/05/2025 - Resolved an issue affecting Airsweeping handling.
- Notifications now show only the five most recent, with the newest first. 2.2.2 11/26/2025 - Resolved an issue where pillaged tile improvements were not applied correctly.
- Fixed a problem that could occur when conquering a city 2.2.1 11/19/2025 - Fixed display issues in the Unit Promotion UI for the Vanilla the Fifth ruleset.
- Resolved a crash that could occur when starting scenarios with incompatible rulesets.
- Corrected tile improvement selection logic and interface behavior.
- Minor UI enhancements and adjustments for smoother gameplay. 2.2.0 11/12/2025 - Fixed ranged attacks on cities.
- Added sound effects and player stats overview.
- Support for converting production into gold or science.
- Bug fixes and VoiceOver improvements. 2.1.9 11/06/2025 - Fixes an issue where tile improvement construction didn’t check required technologies.
- Improves VoiceOver accessibility and overall performance. 2.1.8 10/30/2025 Accessibility improvements for VoiceOver users. 2.1.7 10/16/2025 New ruleset with fresh Policies, Religions, and City-States. 2.1.6 10/10/2025