Nope, it's not on Steam. But Thief and Thief 2 were both re-released 6 or 7 years ago. You should be able to find a copy for a fiver. Then it's just a matter of getting them running in modern Windows, which is almost the exact same procedure as getting System Shock 2 going.
ok thanks. damn getting system shock 2 was a challenge for someone as inexperienced with PCs as me, but so worth it. i never did manage to get the cutscenes to work though, just watched em on youtube. talk about immersion killer lol. and that annoying key binding glitch too.
may i ask who re-released em? as LGS was out of business then wernt they? [censored] i blame the people for not spreading the word about LGS games. imagine if they were still around today, imagine all the incredible games we would have. not all this simple crap.