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When excavating and building structures, some tiles have 'steam'. This causes the excavation to be more expensive. What other effects does it have?

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It's a platform for buying and downloading digital... oh wait, nevermind. – agent86 Oct 11 '12 at 17:25
up vote 9 down vote accepted

You can build a Thermo Generator over the "Steam" areas. These offer power far more efficiently than Power Stations, as they give +20 power instead of +6.

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yea, thermal generators are awesome until you get access to elerium generators. – l I Oct 11 '12 at 16:29
@yx. Even after that, they're cheaper and don't take UFO power sources. – SaintWacko Oct 11 '12 at 16:45
true, but I can place my generators around the thermal vent to get adjacency bonuses. I think on classic you only get 1 steam vent rather than 2 (or maybe its random and I just had bad luck on that start) – l I Oct 11 '12 at 16:46
It's random. I've started 20+ Classic Ironman games now, and have seen anywhere from 1 to 3 steam vents. – Sterno Oct 11 '12 at 16:55
hmm... so to maximize the chances of a classic ironman playthrough I should probably restart until I get 3 steam vents fairly close in proximity to each other... – l I Oct 11 '12 at 18:24

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