Real Time Strategy

A Strategy Game subgenre which focuses on construction and control of a fighting force in battle that takes place in real-time. It has an army of tropes all its own.

Debate rages as to what the first originating RTS actually was, the results largely dependent on the age and nationality of the participants. The ZX Spectrum had some early entrants many many moons ago (1984 saw both Stonkers and Nether Earth); the MSX saw Herzog in the late 80s—but only in Japan; and 1989 saw its sequel Herzog Zwei on the Sega Genesis (Mega Drive) which introduced many of the genre conventions. But it was 1992's Dune II by Westwood Studios (later of Command & Conquer fame) that established the form and the tropes of the RTS which are known to the masses today.

In comparison to Turn-Based Strategy, Real Time Strategy has players take action whenever they wish (within the constraints of how often any particular action can be taken). Play will continue for other players and entities in the game even if one player sits back and does nothing, rather than breaking up the sequence of play into discrete turns for each player, which brings multiplayer matches down from hours or days to minutes. While this leaves less time for strategizing and encourages "twitchy" play-styles, it makes commanders less omniscient, allowing for ambushes and distractions to work better.

Almost all games of this type are based on ground combat on a 2D map, with various terrain and obstacles adding interest to the battlefield. Airborne and seaborne units are sometimes incorporated, but they are seldom realistic in terms of speed and performance (almost all aircraft in RTS games can hover, cannot change altitude, and have unlimited fuel and ammo).

What order you contruct buildings in, and how quickly you do so, is often the most important factor in deciding the outcome, to the chagrin of some players.

The genre also possesses a number of aesthetic conceits, so typical to its presentation that they often confuse even the games' creators (Note: the first three are probably inherited from tabletop wargames):
 * Units are rarely depicted to scale, not even with each other. Buildings are shown about as high as mountains, vehicles tower over the structures that constructed them, and infantry are nearly as large as the vehicle that can carry ten of them.
 * A single "unit" onscreen rarely represents what it appears as. Rather, the single soldier is supposed to represent anything from a squad to an entire company, a hero unit usually includes their personal honor guard, and even a solitary building is probably symbolic of an entire complex.
 * In order to make things manageable in realtime, little details like ammunition, supply, noncombat casualties, fatigue, communication, and maintenance are conveniently swept under the rug.
 * Despite the realtime moniker, a certain amount of chronological compression usually applies, with week or month long battles taking minutes in-game. Still, developers often fail to keep time to scale with itself, allowing buildings to be constructed faster than they were destroyed, and new upgrades to instantly propagate to soldiers in the heat of combat.

Enhancing one's forces with better equipment and training makes perfect sense, but while a few titles do use plausible terminology for requisitioning new gear, training specialists, retooling factories and deploying the finished products to active forces, most use the peculiar choice of "research" for the process. This gives players the surreal image of scientists doing research on the front lines, making miraculous breakthroughs almost immediately, and then promptly forgetting whatever it was, every single level.

Pathfinding isn't necessarily especially weak in RTSs, but in other genres the player is usually too busy running along a linear path thwarting pre-scripted ambushes to notice. Not so in an RTS. Since RTSs take place in enormous, twisty campaigns and the player is constantly shepherding large numbers of units with a perfect view of their incompetence, the tendency of unit AI to unnecessarily bumble around the map in response to choke points, and clump together when attacking, becomes all too glaringly obvious.

For common tropes, see Strategy Game Tropes.

Compare Strategy RPG.

Notable games in this genre

 * Eight Realms
 * Achron
 * Act of War
 * Air Mech (Contains some action game elements)
 * Age of Empires
 * Age of Empires I
 * Age of Empires II
 * Age of Mythology
 * Age of Empires III
 * Allegiance
 * Anomaly Warzone Earth
 * Atom Zombie Smasher
 * Avalon Heroes
 * Aztec Wars
 * Battalion Wars
 * The Battle for Middle Earth
 * Battle Forge
 * Battle Realms
 * Battleships Forever
 * Battlezone 1998 - The reboots from 1998 and 2000, blended with First-Person Shooter.
 * Blitzkrieg
 * Brutal Legend - (the multiplayer)
 * Close Combat
 * Codename Panzers
 * Command & Conquer
 * Command & Conquer: Tiberium
 * Command & Conquer: Red Alert
 * Command & Conquer: Red Alert 3
 * Red Alert 3 Paradox (A Game Mod of the above)
 * Command & Conquer: Generals
 * Commandos (of the squad-based tactical flavour)
 * Company of Heroes
 * Conquest: Frontier Wars
 * Constructor
 * Creeper World
 * Crusader Kings
 * Desperados (The Wild West reskin of Commandos and quite the good one).
 * Dragon Force (video game)
 * Dark Reign
 * Darwinia
 * Dawn of War
 * DEFCON
 * Demigod
 * DETOUR
 * Diggles
 * Distant Worlds
 * Dune II
 * Dungeons
 * Dungeon Keeper
 * Earth 2150
 * Emperor: Battle for Dune
 * Empire Earth
 * End of Nations
 * End War
 * Europa Universalis
 * Fat Princess (hybrid with Action genre)
 * Final Fantasy XII: Revenant Wings
 * Galaxy Angel gameverse (hybrid with the Dating Sim genre)
 * A Game of Thrones: Genesis (hybrid with Western RPG)
 * Gangland
 * Genesis Rising
 * Globulation
 * Grim Grimoire (a side-scrolling one!)
 * Ground Control
 * Halo Wars
 * Harpoon
 * Hearts of Iron
 * Modern Day Scenario II
 * Kaiserreich Legacy of the Weltkrieg
 * Hegemony Series
 * Herzog
 * Herzog Zwei (Contains some action game elements)
 * Hogs of War
 * Homeworld
 * Hostile Waters
 * Impossible Creatures
 * Iron Grip
 * Jeff Wayne's War of the Worlds
 * Kessen II
 * Krush Kill N Destroy
 * League of Legends
 * Lego Rock Raiders
 * Little Kings Story
 * Lost Magic
 * Machines: Wired For War
 * Magna Mundi
 * Majesty
 * Mech Commander
 * Men of War
 * Metal Marines
 * Myth series
 * Naval War: Arctic Circle
 * Netstorm
 * Nexus the Jupiter Incident
 * Nuclear Dawn (hybrid with First-Person Shooter)
 * Odama
 * Ogre Battle
 * Original War
 * Outpost 2
 * Pandemic
 * Patapon
 * Patch Con
 * Pikmin
 * Populous
 * Populous the Beginning
 * Perimeter
 * Rise of Nations
 * Rise of Legends, its sequel
 * Rock Raiders
 * Romance of the Three Kingdoms
 * Sacrifice
 * Saga Rage of Vikings
 * Settlers
 * The Settlers: Rise of an Empire
 * Sengoku
 * Seven Kingdoms
 * Shattered Galaxy
 * Sins of a Solar Empire
 * Spellforce
 * Stalin vs. Martians
 * Starcraft
 * Starcraft I
 * Starcraft II
 * Star Ruler
 * Star Trek Armada
 * Star Wolves
 * Stonkers
 * Stormrise
 * Stronghold
 * Super Robot Wars (Scramble Commander games)
 * SWINE
 * Total Annihilation
 * Total Annihilation Kingdoms
 * Spring (freeware engine with multiple games)
 * Supreme Commander (its Spiritual Successor)
 * Supreme Commander 2
 * Total War
 * Thera - a campaign and conversion mod for Medieval II: Total War
 * Fourth Age Total War - A mod of Rome: Total War which is set in Middle-earth.
 * UFO Afterblank
 * Universe At War: Earth Assault
 * Valkyria Chronicles
 * Valkyria Chronicles II
 * Valkyria Chronicles III
 * Victoria: An Empire Under The Sun and various other Paradox Interactive games
 * Warcraft
 * Warhammer Dark Omen
 * War Front Turning Point
 * Warlords Battlecry 2
 * War of the Ring
 * War Wind
 * Warzone 2100
 * World in Conflict
 * The X-Universe series.
 * Yggdra Unison
 * Z
 * Zero K