Valve's development of their upcoming and highly anticipated VR title Half-Life: Alyx most definitely didn't lack in the manpower department, as the dev revealed that it's actually the single biggest development team they've had.
Speaking in a recent Reddit AMA, Valve's representative was asked how big is the team, to which they replied, "Right now it's around 80 people, which puts it as the largest single team we've ever had at Valve."
As the subsequent commenters correctly noticed, this means that the rumour of Portal's development team hitting 500 people was just a rumour.
Asked whether they'll be a threat in Half-Life: Alyx, Valve replied, "Yes, Barnacles are a threat in VR. They don’t kill you instantly. You'll deal with them in familiar ways, but the opportunities afforded by VR also give you new methods to use against them. We experimented with moving the player, but moving the player without their input in VR didn't work very well."
Translating the Half-Life experience to VR hasn't been easy, but the team did their best to "well-worn mechanics and other Half-Life staples" into the game.
Similarly, Combine soldiers will be making a return in Half-Life: Alyx, and that goes for their standard for and some new variations that Valve used to spice up the whole VR experience.
Interestingly, there seem to be many instances of Half-Life: Alyx development where Valve took some creative freedoms. "Some creatures respond to audio more than others. We don't want to spoil anything, but there's an example of this we're particularly excited about. As with audio, limb dismemberment is not a factor in most combat encounters - but there is a very notable exception", they wrote.