You earn Research Points by completing Colony missions and collecting hidden artifacts during tactical Hero missions. The "Soft" Lock: You can purchase technologies and freely undo them as long as you have not started and won a mission since spending those points. The "Hard" Lock:
The backup option is essentially a manual save feature for your entire campaign state. Here is how you can use it to test different technologies without permanently committing to them: they are billions reset tech tree
of specific late-game units like Lucifers vs. Thanatos. How would you like to proceed with your campaign strategy? You earn Research Points by completing Colony missions
: While there is no official respec, most campaign levels remain beatable even with suboptimal tech, provided you have core economy buildings like Steam Community Third-Party Solutions they are billions reset tech tree