Top-Rated Free 4X Games on Steam

CivIdle - CivIdle is an idle/incremental game that allows you to lead your own civilization through thousands of years from ancient times to the modern era. Expand your territory, explore a vast tech tree, build various wonders, and trade with global players: empire must grow and numbers must go up!

Dec 4, 2025

73% 👍

of 1.1k

Free on Steam More Detail

Total War: PHARAOH DYNASTIES - Wage total war across the ancient world from the Aegean to Mesopotamia in this free addition to Total War: PHARAOH. Challenge the Bronze Age Collapse by building your own dynasty and leading your faction to victory with new cultures, new units and dramatic new battle mechanics.

Jul 25, 2024

77% 👍

of 6.6k

Action · Strategy · 4X · Grand Strategy · RTS · Turn-Based Strategy · Historical · Atmospheric · Capitalism · Tactical · War · Rome · PvP · Multiplayer · Singleplayer

Free on Steam More Detail

Viking Rise - Win a limited Castle Skin and precious decor in the season's grand celebration!

May 21, 2024

70% 👍

of 961

Strategy · RPG · 4X · Strategy RPG · Real Time Tactics · Wargame · 3D · 2D · Medieval · Military · Historical · War · Tactical · PvP · Dragons

Free on Steam More Detail

Pixel Starships - Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

May 23, 2023

73% 👍

of 3.0k

Post-apocalyptic · Sci-fi · Space Sim · Space · Strategy · Pixel Graphics · Automation · Base Building · Massively Multiplayer · Roguelike · 2D · Building · Free to Play · 4X · Multiplayer

Free on Steam More Detail

3 Days War - 3 Days War is a unique multiplayer strategy war game. Integrating the mechanics of RTS+4X, it allows dozens of players to engage in a three-day real-time strategy competitionon. Commanders, use your skills, strategies, games and even deception to become the ultimate winner!

Apr 16, 2023

83% 👍

of 714

RTS · PvP · Grand Strategy · Cold War · Real Time Tactics · Wargame · 4X · Roguelite · Political Sim · City Builder · PvE · Base Building · Mechs · Strategy · 3D

Free on Steam More Detail

Supremacy: 1914 - Take over the control of one of the mighty nations during the times of World War 1 in the biggest WW1 strategy game of all time. Conquer provinces, forge alliances and build up your economy in real-time on persistent maps. Build experimental weapons of World War 1 and become the one true superpower!

Jul 16, 2019

74% 👍

of 4.3k

Strategy · Free to Play · War · Historical · World War I · Grand Strategy · Military · Multiplayer · Simulation · Massively Multiplayer · Diplomacy · Wargame · Tactical · Singleplayer · Co-op

Free on Steam More Detail

Hades' Star - A unique space strategy game where thousands of players participate in one shared galaxy.

Feb 27, 2019

73% 👍

of 2.7k

Free to Play · Space · Strategy · Massively Multiplayer · Sci-fi · RTS · Multiplayer · Tactical · PvE · PvP · Online Co-Op · 2D · 4X · Co-op · Indie

Free on Steam More Detail

Demise of Nations - Demise of Nations is a 4X turn-based grand strategy wargame covering the rise of Rome till the fall of modern civilization.

Aug 8, 2017

81% 👍

of 551

Free to Play · Strategy · Indie · 4X · Multiplayer · Turn-Based Strategy · Hex Grid · Grand Strategy · Historical · Singleplayer · Early Access · Turn-Based · War · Casual · Tactical

Free on Steam More Detail

Galcon 2: Galactic Conquest - Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!