Starcraft – How to counter a suicide Reaper rush as Protoss in StarCraft 2

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I got taken down by what felt like a cheesy Reaper rush in 1v1 PvT. The other player basically sacrificed everything to build a Barracks and two or three reapers (I believe he built the barracks at 7 or 8 SCVs) and got into my base shortly after my first Gate went up. I didn't build a Zealot because other things I had read recommended going straight for a Stalker (and usually this seems to work).

I scouted him, but he hid the Barracks somewhere else (probably near my base) so I didn't see it. There wasn't enough time for me to check everywhere he could have hidden it, so I'm not sure I could spot it coming.

I moved my Probes away from the Reapers, and while I did that he ran in and built a Bunker on top of my resources. At that point it was game over.

How should I counter this?

Edit for clarification

I'm redefining this as a "suicide" Reaper rush, to distinguish it from a normal Reaper rush. I was already building for a normal Reaper rush: Gate then Cybernetics, skip Zealot and go straight for a Chrono-boosted Stalker. I had just started my Cybernetics when his first Reaper showed up. I looked at his build order after and he was skipping SCVs to get a Reaper out way earlier than is normally possible. He also sent 3 SCVs to build the bunker in my base, so he was gambling everything on taking me out in that first wave.

Best Answer

It sounds like your problem is less, "I need a counter" and more "How could I have known?"

First off, you said you scouted him but he proxy'd his Barracks (hid it outside of his base). Let's go over the ways you could have still seen this coming:

  • Usually not seeing a Barracks is a good sign he's Proxying.
  • Watching for a very early Vespean Refinery is usually a sign of some sort of early Marauder/Reaper play
  • Finally, many top Protoss players default into 1 Gate -> Cybernetics Core to set themselves up to stop this.

What else could you have done?

Some guide will suggest skipping that first Zealot, but if you can squeeze him out (Zealot has a 33 sec build time compared to the Cybernetics Core's 60) he serves as a good distraction to keep the reapers off your probes.

Make sure to save some extra chrono boosts to boost out a Stalker. While early game you should be using these on Probes, once you start building the Cybernetics Core stop using them and save them for the Stalker.

Another problem you had was a Bunker slipping in. There are a couple ways to stop this, but most prominently walling off your ramp. You can do this with your Gateway/Cybernetics Core, or leave space and place that first Zealot there. Alternatively, you can build an extra pylon closing off that small space with plans to kill it later.

Once he does start building the Bunker, you can use either your Stalker or even your Probes to try and kill it during production (or even better the SCV building it). The follow up will usually be a large number of Marauders so you can either push out Zealots to deal with this (its unlikely he'll have concussive shell this early), or a Sentry. With the Sentry you'll want to use force field at the bottom of your ramp to keep him from moving up and gaining sight. You can then use your Stalker to prevent Reapers from giving sight and to target the helpless Marauders.

In any case you should consider your next move. Are you going to go Robo? get out an early Immortal. Or do you want to throw up 2-3 Gate and out produce him (as he's seriously cut production).

One of the things you'll notice is that as you continue to play, the time it takes you to get out that first stalker will rapidly decrease. A Reaper rush really trades on the opponent not seeing it, and not being very experienced.

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