Arnold is perhaps the unluckiest technician alive, as Five Nights at Freddy’s: Secret of the Mimic sends him on a job that takes him into the dangerous depths of Murray’s Costume Manor. With “homicidal” animatronics lurking around every corner, you have to be careful while searching high and low for all manner of secrets.
With a game as immersive and detailed as Five Nights at Freddy’s: Secret of the Mimic, it certainly begs the question of just how long players can expect the story to last compared to other games in the franchise. Here’s what to expect from your first playthrough and beyond.

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Five Nights at Freddy’s: Secret of the Mimic – How to Restore Power
One of your first objectives in Five Nights at Freddy’s: Secret of the Mimic is to restore power so that you can proceed further.
How Long is the Story of FNAF: Secret of the Mimic?
Based on an initial playthrough, the story of Five Nights at Freddy’s: Secret of the Mimic took about 25 hours to beat, give or take. While each individual player’s experience is always different in one way or another, this takes a variety of factors into account.
First of all, FNAF games, no matter how they’re designed, are infamously known for planting lore, treasures, and secrets in as many places as possible. This is, in large part, what has kept the franchise’s player community so invested for over a decade now. The same can be said for this game, as there are special collectibles to find in just about every single area of Murray’s Costume Manor. Some of those collectibles ask for more problem-solving to obtain than others, or require varying degrees of progress with things like your Data Diver’s clearance level. That alone took a substantial amount of time overall during gameplay.
Next, there are the game’s mechanics to consider. Each benchmark FNAF game presents a unique experience when it comes to dealing with dangerous animatronics and other elements. In the case of Secret of the Mimic, the gameplay features unique limitations that make all manner of tasks more challenging, whether it’s gathering and transporting items or evading animatronic patrols.
Also, compared to other games in the franchise, Secret of the Mimic offers surprisingly little in terms of guidance when it comes to completing objectives. There’s no on-hand map or inventory slots to hold multiple items, and you have to figure out all puzzles and task sequences largely on your own. Avoiding animatronics is also almost entirely about stealth, as it’s impossible to outrun any of them (unless it’s a scripted chase, of course).
This all leads to repeated trial and error, of which you’ll likely experience plenty throughout the game’s various sections. Also, while much of the story is very linear in nature, there is still a relative flexibility with exploring the map, once you are given access with your Data Diver. All in all, there’s plenty of incentive to take your time with Secret of the Mimic, to the point that it can easily take you even longer than 25 hours to roll credits. After all, in true FNAF fashion, completion is the key to unlocking all the juicy lore and Easter Eggs, and there’s plenty to learn about Edwin Murray and his animatronic empire in Secret of the Mimic.