Hacker News Reader

They all do (Zero-K, BAR, and most of the games built on the engine).

You can also reclaim metal from dead units and structures.

I mean Total Annihilation pioneered that concept and Spring RTS started as an open source clone of Total Annihilation so definitely some Spring RTS mods do, and Zero-K almost certainly does.

I feel old now :-)

SpringRTS is actually older than the first Supreme Commander game.

I think pretty much all Spring games support that. Zero-K and BAR both do anyway. Both strategic zoom and real time “streaming” building came from Total Annihilation and Spring games are TA based.