Lol you guys are funny. Say what you want but it WAS about Bioware losing focus. It wasnt about having thin resources but about EA wanting ME2 to appeal to a base that is more than just RPG. EA wanted a part if the Gears of War/COD crowd and thus they (Bioware) made the design decision to ditch exploration which was too RPG centric and focus on combat. It was a decision that was about $$$$, and not time/resources.
Well it is clear that by "losing focus" you actually mean disagreeing with you on cutting an entirely optional feature from the first game.
Here is the thing, Mass Effect 1 ALREADY focused on the combat. The game required you to shoot your way through a small army (in linear levels just like the sequels) and yet the combat mechanics were absolute trash. This is a problem.
You blame it on action crowd pandering but the combat was widely disliked and BioWare was always going to have to focus on it since after all it is the PRIMARY way players interacted with the game. ME2 at least got it up to something halfway decent that wouldn't actively get in the way of the player and arguably threaten the commercial viability of the series.
The "exploration" in ME1 was terrible and unacceptable. You can try to downplay it but the fact is that they had two years to make a sequel to a game that was released in shambles and limited resources are a factor. Designing interesting large environments (not like ME1), creating worthwhile (not like ME1) content, and testing it all is something that is demanding.
Finally, I am glad that it "seems" that ME1 is being used as the template instead of ME2 and ME3. The exploration needed more polishing in ME1 but instead they dropped it like a hot potatoe in the next games. Its great to know that they are looking into it for a 2nd time with the refined mako and all.
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Remember, ME1 was an RPG game that had shooter elements. ME2 and ME3 are really shooter games with RPG elements.
Mass Effect 1 was already very shallow. The series was always designed as an RPG-lite that would have mainstream appeal, the sequels just continued with that direction.
Looks like ME4 is going to be more of a RPG game.....with shooter elements.
The next game is going to have ME3's combat and be bloated with vast amounts of Ubisoftian trash like DA:I. You'll just drive around instead of walking when collecting filler and liberating outposts/towers/whatever.