I dont let other civs build any galactic wonders I care about anyways. The ony time this is tough is in the very beginning when youre racing the Arceans to build diplo trans(when you wouldnt have the economy to build spies anyways). After then, everyone in the galaxy is too busy waging the wars I engineer from behind the scenes to bother me much, or to rush production on any wonders.
Once again, spies worthless in this regard.
You can supress industrial production to *some* degree on a single planet, but unless youre playing on a tiny world map or with settings that only allow each race to have a few planets, the many other industrial worlds each race has makes this insignificant.
Again, worthless.
The hundreds to thousands of BC you need to spend to proliferate spies high enough to place them effectively, are much more dangerous in your bank account, buying ships, factories, labs, allowing you to run at 100 % productivity while keeping a lower tax rate (hence higher growth, hence more money, etc), buying techs, buying econ and diplo bases, and paying off other civs to go to war. You can do much, much more damage doing these things than aggressively investing in espionage.
The only reason to build spies is because its now in DA been forced on the player as a money sink, for defensive purposes (to nullify other agents). Mandatory Excessive cost for negligeble benefit = Money sink. Its simply a tax on your economy without redeeming qualities under the guise of "gameplay depth". Sure...its more involved than it was in DL but nearly as worthless, except now its involuntary...and I think as more and more players get over the novelty of the new system, theyre going to become increasingly resentful of the new tax.
Im happy that Stardock put effort into trying to add more depth to the game in this area, but they went in the wrong direction. They tried to make the worthless espionage concepts in the game more complex, instead of trying to establish real value for espionage by limiting the wealth of info players are easily able to obtain from turn 1.
Some questions to consider:
* How much more apprehensive would you be about starting a war with someone that you didnt know the exact number of ships, with the exact specifications , or how many troops you needed to invade with, by simply clicking on one of their worlds on the map? (unless you had good intel)
* What if you didnt know even what weapon types the opposing ships had, until you faced them in battle the first time? (unless you had good intel)
* In the Diplo screen (where you can get pretty much all the info you need to know),all the races now seem to have "Trademarked" technoloigies that they generally wont trade because its too important to them. If I know my political speak, this means "Top secret". How much more of a jump would it be to have each race classifiy x number of their techs as "top secret", and they dont all explicitly show up on the diplomacy screen? What if agents you placed on enemy worlds could be actively assigned to try and "research" one of these "top secret" techs as long as they were on-world?
* What if you didnt know exacly how much money races had, and exactly how much you could get from them per trade (unless you had good intel), and diplomacy required more risk and guesswork (like it does in most other games)?
* Shouldnt uncovering an enemy agent be seen as an act of war by the nation that sent it, or at least as a serious affront that would alter relations several stages? Meaning that youd want your spies to be as skilled as possible before you start placing them recklessly on worlds, meaning an espionage skill tech tree.
Im perfectly happy to consider espionage as a "cost of doing business" if its going to get me the answers to questions like these. But nobody "needs" espionage the way the game is set up right now, except for the fact its now been set up as Tax on the economy with no real payoff other than as a pesticide.