All the technology upgrades I've found have a suffix which seems to determine the tier or effectiveness, such as "Tau" or "Sigma". How many of these tiers are there and which is the strongest?

  • I've heard that Theta is the most powerful or effective, but I don't know of the other ranks. – Kaizerwolf Aug 15 '16 at 0:22

There are four tiers of tech upgrades: Sigma, Tau, Theta and Omega. Their comparative strengths rank as follows:

Omega > Theta > Tau > Sigma

The stronger the upgrade, the rarer/more expensive the materials required to build it will be, as noted by @David Yell.

As noted by user @SGR, not every tech has four tiers -- four is the maximum you'll see, and the comparative ranks shown above still apply to techs with fewer tiers of upgrades.

(Source, Source, Source)

  • 2
    It's worth noting that the the higher tiers of blueprint require rarer ingredients and greater quantities too. – David Yell Aug 15 '16 at 9:18
  • Can this answer include the strength of these tiers? How much of the circle-meter fill up with a tier 3 tech, for example. – Carl Aug 15 '16 at 13:23
  • @Carl I'm not sure which circle-meter you're talking about (on holiday right now, so can't boot up the game). I did, however, add the upgrade "numbers" if that helps. Feel free to edit the answer with the information you're talking about. – pushasha Aug 15 '16 at 14:53
  • User Lockness has said they found a +5. – DCShannon Aug 15 '16 at 14:56
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    Do you need all 4 tiers of an upgrade to get the bonus? I have thetha hyperdrive but won't let me go to blue galixys that need it – user163150 Aug 16 '16 at 6:48

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