In Wings of Liberty the Terran are characterized by mobility and good defense. Terran from the time in development were even more able to customize especially their base to become more of a dynamic race. With units like the Diamondback and the Firebat, they were able to deal a good amount of damage, quite fast. Reapers being able to utilize stim, early and midgame harass was one of the Terrans speciality. The famous Terran flagship, the Battlecruiser, was able to adjust its weapons to the enemy. But out of all that, bases were very dynamic. Sensor Towers, Tech Labs and Missile Turrets were able to Salvage just like Bunkers can now. And the Starport was capable of being upgraded to a Starbase - a building that was able to produce air units while flying. Even the heavy Thor was made on the battlefield by a SCV. Whole bases were capable of getting relocated almost without any harm.
The Zerg, now known as a race with cheap units built in quantity, were the race that lost most upgrades and abilities but least amount of buildings. Their focus was on spellcasters, namely the Infestor, the Overseer and the mighty Queen. The Queen was able to morph, just like the Hatchery, into a better version with more features. In this case the ability to grant better static defense by making every Zerg building a possible defensive building. For that and many more abilities, Zerg was only able to get one Queen at a time, like the Protoss Mothership now. The other two spellcasters, the Overseer and especially the Infestor had way more and quite interesting abilities. Even with being able to turn enemy buildings and units into infested friendly units they had the power to turn seemingly lost battles against overwhelming enemies in seconds into an open-end fight or even in favour of Zerg.
One thing that the Protoss from development have in common with the Protoss now, is that they have expensive, strong units. The powerful Protoss arsenal for units was the biggest of the three races, and they, too, lost a wide variety of abilities. Within their base they were able to choose from different versions of a Pylon, granting new options to support their economy and army. They lost crisp units like the Purifier with their special attacks and the Star Relic, an air unit with gamechanging abilities. Also their ultimate air unit, the Mothership, had way more options to decide the possible outcome of a game.
During the development of StarCraft II there were quite a few features that just didn't make it into the current version of SC2. This is an overview of those features.
|Drop Pod Facility||Alpha|
|Anabolic Synthesis||Ultralisk||Beta Patch 0.16.0|
|Peristalsis||Infestor||Beta Patch 0.16.0|
|Organic Carapace||Roach||Beta Patch 0.16.0|
|Null Flux Generator||Colossus||Alpha|
|Flux Vanes||Void Ray||WoL Patch 1.2.0|
|Khaydarin Amulet||High Templar||WoL Patch 1.3.0|
|The Lurker Den was cut with the Lurker during the alpha stages. The Lurker Den was before known as the Deep Warren, but other than the name and a slightly changed model nothing drastically changed.|
|The Merc Compound was a building found in the early alpha builds of StarCraft II, enabling the production of Reapers. The Merc Compound was first seen in Battle Report 2, but has since been scrapped as an unnecessary tech building. The Merc Compound is however featured in the Single player Campaign, where it is used for hiring Mercenaries.|
|The Radar Tower was originally an upgrade of the Sensor Tower. It was a structure that automatically scanned for enemy units and buildings in its range. It also emitted an alarm as soon as enemy units where detected within its wide radius. Units appeared as a red exclamation mark on the map in fog of war. Radar Towers were also crucial for Missile Turrets since only Radar Towers were able to grant the Detector ability to them. Position and sensing radius where both visible for every player on the map. Although the initial Radar Tower was upgraded from a Sensor Tower, it got changed to fully replace it. The new version had the almost exact appearance and abilities as the Sensor Towers have now. It was renamed before the official Beta started.|
|The Starbase was a Terran building, upgraded from a Starport. It was able to produce Terran air units while lifted off or flying. The Starbase was cancelled in early alpha stage of the game. It also had the ability Re-Arm which restored energy to a nearby unit. The Starbase still needed a Tech Lab (that still had the Salvage ability) to produce some units.|
|The Phase Cannon was originally the replacement for the Photon Cannon from Brood War. Not only was the name different but it also had a new special ability. It was able to change into energy form and relocate under the condition that it was within the power radius of a Pylon or Warp Prism. This transformation took three seconds. The Phase Cannon was also a Detector building. It got replaced by the traditional Photon Cannon before the Beta started.|
|The Obelisk was in the late alpha stages of StarCraft II but was removed upon release of the beta.
The Obelisk was essentially a more expensive Pylon, performing the same functions while also allowing for Protoss shield upgrades and, in certain builds, Proton Charge (allowing probes in a small aoe to collect one additional mineral per trip for 30 seconds), Shield Battery (recharging unit shields, just like Brood War's Shield Battery), and Argus Link (a sort of Shield Battery, but for energy).The Obelisk was also once known as the Dark Pylon.
|Similar to the Obelisk, the Monolith was version of a Pylon with some extra features. As the Obelisk lost its name Dark Pylon, the Monolith was originally known as the Dark Pylon. Early version were able to cloak nearby buildings; later this feature got removed in favour of the Null Shield. Also a different version of the Obelisk's ability to restore Protoss shield was discussed and tried out.|
Lurkers are a great support unit with a powerful lined splash attack when burrowed. It was a unit that got cut during the alpha stage of StarCraft II development. It was almost the same unit as in StarCraft: Brood War and would've been one of the few units that would remain untouched. Lurkers needed a Lurker Den to be transformed from Hydralisks Lurkers were only able to attack when burrowed.
The Lurker still remained in the StarCraft II: Galaxy Map Editor and also appeared in the campaign of Wings of Liberty. It appeared as well in the campaign of Heart of the Swarm. It finally was added into Multiplayer in Legacy of the Void.
|The Infested Protoss was a unit produced from an infested Protoss building, a Infestor ability. It was taken out of the game quite early due to conflicts with the ongoing campaign.|
In the early stages of StarCraft II development the Firebat was still considered as a unit for the multiplayer part, even though got later replaced in favour of the Marauder and the Hellion. The Firebat was produced in a Factory and was a heavy infantry but still able to fit into bunkers and get healed by Medivacs.
|Fast, high-damage hovertank. Rail Gun can fire while the Diamondback is moving. The Diamondback was originally a multiplayer unit called "Cobra". The Cobra was able to shoot air and ground and was good at dealing damage vs Armored units. The Cobra had its debut in Blizzards fourth inhouse alpha-match, the Battle Report #4 but never made it into public beta.|
|The Purifier was a ranged infantry unit that rode a hovering platform and had the ability to increase the damage output of his weapon by killing units. The Purifier got canceled during alpha development. It was one of the very few units that was known only from StarCraft: Ghost. It was produced from a Gateway and needed a Twilight Council. The Purifier gained more damage output everytime he killed a bunch of units. It would've been the only unit that actively uses the kill count. In earlier stages the Purifier was also known as Soul Hunter|
|The Star Relic was an aerial support unit with offensive abilities. The Star Relic was capable of detonating in battles and originally had the Hallucination ability. It was able to change into stationary mode, much like the Warp Prism, and cloak nearby units and buildings in that condition. The Star Relic was warped in at a Stargate and required a Fleet Beacon. Early version had a much different model, although the very last version - before it got taken out of the game completely - were similar to its replacement, the Stasis Orb. A much changed version of the Star Relic appears in the Wings of Liberty campaign as Zeratul's ship.|
|The Reaver was a heavy, robotic siege unit. Like other Protoss units, the Reaver got taken out of the game before StarCraft II got into Beta. The Reaver was fully replaced by the Colossus because the Colossus required the same tech but was superior in mobility, hitpoints and needed less micro to handle.|
Tempest & Shuriken
|Tempest was the original replacement for Brood War's Carrier. It had a powerful shield against attacks coming from ground units and buildings, almost like the Immortal has Hardened Shield. Though it had weak defense against Air-to-Air attacks. The Tempest was able to produce little drones called Shuriken, small flying melee units similar to the Carriers Interceptor.
The Tempest got cancelled in favour of the original Carrier in the alpha stage of the game. It would've been one of a small amount of Protoss units (like the Stalker now) that would've had a "Dark Color Scheme".The Shuriken was a robotic drone that produced by the Tempest. With the Tempest taken out of the game in favour of the Carrier, the Shuriken was replaced by the Interceptor. The Shuriken would've been the only air unit, that deals melee-damage
|The Stasis Orb was a Protoss unit that could slow down enemy units by attacking them. The Stasis Orb had no active abilities to use and was taken out in early alpha. It was the replacement for the Star Relic and got later replaced by the Nullifier which become known as Sentry.|
Wings of Liberty
Heart of the Swarm
This was one of the new units for Heart of the Swarm, revealed during BlizzCon 2011. In April 2012, Blizzard announced that the Shredder wouldn't be kept in the final version of the game, since it was perceived as very confusing for the players. It was indeed used to kill a large number of workers with little to no warning, and rarely for its intended role of map control.
One of the new Mechanical units from the Factory, and was originally planned as the spiritual successor to Goliath and the Thors replacement; but was fashioned as an anti-mechanical unit at Heart of the Swarm's Beta. Also, having high health and movement speed this unit is great for Hit & Away tactics, so long as it is not destroyed the instant it comes into another unit's range.Initially, when Heart of the Swarm was revealed, the Warhound was planned as the replacement for the Thor, having the same splash Light-damage attack versus air units and a strong attack against Mechanical units. But developers ended up opting for a more anti-ground focus with Haywire Missiles instead.
- "Developer Update: Heart of the Swarm Multiplayer". Battle.net. April 11th 2012.
- "Developer Update: Heart of the Swarm Multiplayer". Battle.net. April 11th 2012.