From my post on a mostly similar thread [http://www.escapistmagazine.com/forums/read/9.845490-What-DLC-should-I-get-for-Mass-Effect-2-3?page=2#20836073] about a year back:
I'm guessing you're only asking about the Character/Mission DLC, and not about the weapons/alternate appearance packs?
Let's get started then.
Of course, if you have all the money needed for the Character/Mission DLC to spare (not to mention the storage space for it as well), then I say got for all of them.
Except for the Genesis DLCs. Avoid those and just play the games.
I'm guessing you're only asking about the Character/Mission DLC, and not about the weapons/alternate appearance packs?
Let's get started then.
Bring Down the Sky - One of only two Mass Effect DLCs, it doesn't really add anything to the series overall, but it's still fun. And depending on how you play it out, you can get some really rare and awesome gear at the end of it. If you have the extra cash (or are playing on PC), I guess you should go for it.
Pinnacle Station - Doesn't add anything to the series overall. It's just a combat simulator that comes with a few achievements. However, if you need to get any Ally or Power use achievements, this greatly helps you get them. An easy skip, probably should only pick it up if you want all the achievements.
Pinnacle Station - Doesn't add anything to the series overall. It's just a combat simulator that comes with a few achievements. However, if you need to get any Ally or Power use achievements, this greatly helps you get them. An easy skip, probably should only pick it up if you want all the achievements.
(not counting things that come free with the Cerberus Network)
Kasumi - Stolen Memory - I love Kasumi as a character, but you may or may not find her useful depending on what class you're playing as. Her mission is fun as hell though, and you get the best SMG in the game here. If you have the cash to spare, go for it.
Overlord - An interesting enough DLC that gets pretty disturbing, but it doesn't add much to the series. You can probably skip this one.
Lair of the Shadow Broker - This is part of a hunk of Mass Effect 2 that moves the story forward and prepares you for Mass Effect 3. Pretty fun, and epic, this is a must buy. (for story reasons, in my opinion, it's best to leave this for after the Suicide Mission)
Mass Effect: Genesis - Only get this if you *REALLY* don't want to go through Mass Effect, but even then I don't really recommend it due to all the stuff you'll miss out on. Pass.
Arrival - The other hunk that moves the story forward to Mass Effect 3. While it's interesting enough, it's kinda on the short side and it's kinda boring gameplay wise. If it weren't for the fact that this is so important to Mass Effect 3, I'd say skip it, but you kinda can't for story reasons alone. Another DLC that I'd recommend waiting to do until after the Suicide Mission.
Kasumi - Stolen Memory - I love Kasumi as a character, but you may or may not find her useful depending on what class you're playing as. Her mission is fun as hell though, and you get the best SMG in the game here. If you have the cash to spare, go for it.
Overlord - An interesting enough DLC that gets pretty disturbing, but it doesn't add much to the series. You can probably skip this one.
Lair of the Shadow Broker - This is part of a hunk of Mass Effect 2 that moves the story forward and prepares you for Mass Effect 3. Pretty fun, and epic, this is a must buy. (for story reasons, in my opinion, it's best to leave this for after the Suicide Mission)
Mass Effect: Genesis - Only get this if you *REALLY* don't want to go through Mass Effect, but even then I don't really recommend it due to all the stuff you'll miss out on. Pass.
Arrival - The other hunk that moves the story forward to Mass Effect 3. While it's interesting enough, it's kinda on the short side and it's kinda boring gameplay wise. If it weren't for the fact that this is so important to Mass Effect 3, I'd say skip it, but you kinda can't for story reasons alone. Another DLC that I'd recommend waiting to do until after the Suicide Mission.
(not counting any multiplayer items)
From Ashes - Content that was clearly cut from the main game in order to have Day 1 DLC, this is a must have on the basis that Javik is so interracial to the game. It also doesn't help that you already don't have a whole lot of squadmates to pick from.
Extended Cut - The ending patch. Don't download unless you plan on doing anything Cronus Station onward.
Leviathan - You find out the origin of the Reapers here, and it's interesting enough. You get a bunch more War Assists, and several pre-order only weapons from this as well, plus a new bonus power. Also gives you a few extra lines of dialogue at the end. Buy, I suppose.
Omega - This sorta feels like it was cut from the main game, but unlike From Ashes, this is a mess, and it doesn't really come back to the main game. Littered with audio and visual bugs, you could probably pass on this.
Citadel - Buybuybuybuybuybuybuybuybuybuy. Why haven't you gotten this yet? It's loads of super fun and a much better ending to Mass Effect 3 than the actual ending and/or the patch ending. So much content to have fun with. Combat simulator! In game games! Character interactions! Apartment decorating! THE LANCER!!
Mass Effect: Genesis 2 - Unless you really, really don't want to play ME 1 & 2, and have a whole bunch of choices be left unpicked and unbothered with, then avoid, avoid, avoid.
From Ashes - Content that was clearly cut from the main game in order to have Day 1 DLC, this is a must have on the basis that Javik is so interracial to the game. It also doesn't help that you already don't have a whole lot of squadmates to pick from.
Extended Cut - The ending patch. Don't download unless you plan on doing anything Cronus Station onward.
Leviathan - You find out the origin of the Reapers here, and it's interesting enough. You get a bunch more War Assists, and several pre-order only weapons from this as well, plus a new bonus power. Also gives you a few extra lines of dialogue at the end. Buy, I suppose.
Omega - This sorta feels like it was cut from the main game, but unlike From Ashes, this is a mess, and it doesn't really come back to the main game. Littered with audio and visual bugs, you could probably pass on this.
Citadel - Buybuybuybuybuybuybuybuybuybuy. Why haven't you gotten this yet? It's loads of super fun and a much better ending to Mass Effect 3 than the actual ending and/or the patch ending. So much content to have fun with. Combat simulator! In game games! Character interactions! Apartment decorating! THE LANCER!!
Mass Effect: Genesis 2 - Unless you really, really don't want to play ME 1 & 2, and have a whole bunch of choices be left unpicked and unbothered with, then avoid, avoid, avoid.
Of course, if you have all the money needed for the Character/Mission DLC to spare (not to mention the storage space for it as well), then I say got for all of them.
Except for the Genesis DLCs. Avoid those and just play the games.