nomotog said:
What makes a lot of old games really good and really good is that they put effort into being different. Now it seems like a lot of games are trying to be the same.
To be fair, it is a lot easier to do something entirely unique when it has never been done before. Once games like Thief introduce a concept, it no longer becomes a matter of creating something new in that regard. It becomes a matter of improvement and making the experience as enjoyable as possible.
And even then, it isn't like older games didn't have a serious issue with copycats. The NES had a ton of platformers that were no doubt trying to cash in on the success of Mario. Plenty of FPS games were styled after DOOM, and, really fitting to this thread, Thief was unique and fresh for its time largely because it broke from the standard DOOM-inspired FPS. Plenty of JRPGs of the time were also clearly taking inspiration from Final Fantasy, even down to having an almost identical story.
It isn't like classic games lacked a serious issue with copycats. What they do have over AAA games of today is adequate time for those cheap knockoffs to fade into obscurity, allowing only the more original and better games to shine through.
Furthermore, today we still get plenty of games challenging the standards. Games like STALKER, Amnesia, and Dark Souls all challenge senses of empowerment. Portal differentiates itself from most FPS games by being based on puzzles rather than combat. And plenty of games are looking at what was lost in the past (e.g. turn-based combat) and trying to make it appealing to a modern audience while also giving it a unique twist.
So I would hardly say that today is lacking games trying to differentiate themselves from others. The major difference, again, is that time has allowed all the bad knockoff games from the 80s, 90s, and early 2000s to fade away, which hasn't happened for games of today yet.