Yeah if I had played Outcast back in 99 I am pretty sure it would have been in my "best games of all time" group. For its time, it was just ahead of everything else.
But even the remake, while low budget, being played now, is highly enjoyable. I finished it this morning (98% completion, 80% on sidequests, no idea what I missed). The atmosphere still works, music is just incredible and Cutter Slade is basically Jack O'Neill, so for a Stargate SG1 fan who always wanted Stargate game and never got one, this was the next best thing.