The Power will fail, and you take damage unless you've installed the Power Psi O/S Upgrade or you have high enough PSI (only 8 is wholly safe though). Missing the yellow box by releasing too early uses the Psi Power at its normal level. Once it reaches the yellow box at the right side of the bar, release the button and the Psi Power will be cast with a bonus of +2 to your PSI stat, to a maximum effective PSI of 10 (however, for that the player needs to have PSI 8 before casting). A progress bar will appear in the center of the screen, filling as you continue to hold the mouse button. Some Psi Disciplines can be overloaded to increase their effectiveness, by holding down the left mouse button. Tiers need not be unlocked in order, or at all.Īfter training, all OSA Agents start with Tier One and Tier Two unlocked, along with the Projected Cryokinesis Discipline and any two of the other six Tier One Disciplines. Thus, unlocking Tier Five increases maximum Psi Points by ten (2 × 5). Tier unlock upgrades are not Disciplines, and have two passive effects: They make it possible to unlock Psionic Disciplines at that Tier, and they provide a permanent increase in Psi Points equal to twice the level number. This is also done at Psi Upgrade Units, and costs the same number of Cybernetic Modules as a Discipline for that Tier. Prior to acquiring any new Psionic Discipline, the player must have also unlocked the Tier to which that Psionic Discipline belongs.

Each Tier contains seven Disciplines, giving a total of 35 available Disciplines in the game. That is, Tier Four Disciplines require four Psi Points to use. The number of the Tier equals the number of Psi Points required to activate any particular Discipline from that Tier. Psionic Disciplines are grouped into five Tiers, or levels.

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