The Tech center could be a place where you can hourly build tech's Such as (just spit balling here)
Precision targeter: a pa**ive tech that improves your accuracy by 5% for a period of 1hour and could cost up to 100 turns to make

another one could be Battle Pod: Improves the users attack by 200 costs 300 turns to create this tech and 10 points to activate lasts 2 hours. downside: hp is reduced by 150 (pa**ive)

or permanent techs such as:

Power source Tech: stays on you for eternity gradually improves as you level Improves attack by 50 automatic tech costs 25points to start up and 100 turns.

Hp boost: Same as the power source same price but improves Hp 50 gradually improves.

The Tech center can be improved as it is acknowledged by admins and support.