several trophies (PS4) and achievements (Xbox One) are glitched. I have compiled a list down below. There are also complaints about this on other trophy and achievement forums.
The glitches appear to be completely random. The trophies unlock for some people, but not for others. I have asked around and looked at forum posts and this happens on both the digital and the disc version (EU and USA). I also asked people whether they touched co-op or not. It doesn't seem to make any difference. A friend of mine did everything in single player without ever activating the online mode and has some trophy glitches too (but he got the trophy for all text collectibles).
The saddest part of all, however, is that the platinum trophy (or 1000 Gamerscore) is currently unobtainable (*Patch 1.02 -- Feb 02, 2015) because the side quest trophy does not unlock for anyone.
It's All In the Writing Find all text collectibles >Glitched for 90% of players. Almost nobody - me included - got this trophy after finding the 67 text collectibles in the game (34 notes, 17 Battle Journals, 16 Voice Mails). Others got it just fine. I tested it with some old save game backups and collected the last couple of things again, but no trophy every time. It doesn't seem to matter what collectible you pick last. One time I picked up a note last, another time a voice mail. No trophy. Trespassing Complete all Quarantine Zones >Glitched for 75% of players. A lot of complaints about this one too. Doesn't unlock for most people, others get it just fine (worked for me, did all of them solo). Now It's Safe Capture all Safe Zones >Glitched for 30% of players. For most people this works fine, but there are a number of reports that this doesn't unlock. Homo Homini Lupus Est Save 15 survivors from Rais's men >Glitched for 90% of players. But most of them got it after freeing a couple more men (21 or so in total). So this one can unlock, it just doesn't unlock at 15 for anyone.
This is Harraaaaan! Kill 100 enemies by kicking them off the rooftops/cliffs.
>Not completely sure about this one. It seems to unlock eventually, but for some people doesn't unlock after 100. If you keep kicking more zombies off rooftops/cliffs it should unlock eventually.
Pheidippides Run (move or sprint) at least 42.195 m
>Glitched for 10% of players, but it should unlock eventually. There are players who have 50km+ in their statistics, but haven't earned the trophy yet. The Whole Story Finish all side quests. >Glitched for 100% of players. Currently unobtainable. Because of this the platinum trophy (or 1000 Gamerscore) is not possible at this time. There are several people who have 100% in-game completion, but no trophy popped.
Please fix these issues as soon as possible and let us know if there are any workarounds for this. You fixed the "There and Back Again" trophy in the first Dead Island with patch 1.04, so I am sure you guys can figure this out too
If you are one of the unlucky ones with a glitched trophy / achievement, please leave a post in this thread and participate in the poll above. The more feedback we have, the easier it will be for the developers to locate the problem and the sooner we may get a patch for this.