We pour hours upon hours into our favorite games. We scour open worlds for every last trinket and quest giver, eager to see everything these interactive spaces have to offer. We hold onto fond childhood memories parked in front of classic titles for marathon sessions. But sometimes despite the huge chunks of our lives we pump into these awesome games, we don't always finish the task. Princesses remain unsaved, and doomed lands remain in a state of strife. We're not calling your gaming prowess into question here, but we've bundled up a selection of fantastic games you likely didn't finish for one reason or another.

That said, we're sure there are an elite few out there in the Game Informer community who have completed a chunk of the games on this list. Because we all like bragging about our gaming exploits, we encourage you to sound off in the comments below to share which of these commendable tasks you've checked off your bucket list.

The Elder Scrolls V: Skyrim

Gamers have been questing throughout the realm of Tamriel for years, but the fifth chapter of the Elder Scrolls series offers up an unprecedented amount of cool stuff to do. You could easily spend a hundred hours burgling your way through the Thieves' Guild, snuffing out targets in the Dark Brotherhood, or any number of super fun optional quest lines. Hell, more than one of you reading this probably spent an ample amount of time churning out iron daggers to level up your blacksmithing skills. All this is to say that there is a lot to do in Skyrim, a game that makes wandering the sprawling landscapes arguably more engaging than its core storyline. The next time you talk to a self-professed Skyrim addict, ask them "Did you beat Alduin?" and see how they respond. [Editor's note: we originally mistakenly referred to Alduin as Paarthurnax]

Mike Tyson's Punch-Out!!

Many gamers who grew up with an NES have mixed emotions regarding this arcadey boxing classic. Punching Glass Joe's lights out and finally countering Bald Bull's charging uppercut are memorable video game milestones, but there's a strong chance many who grew up with this game didn't make it past the titular antagonist. Mike Tyson was a tenacious, ear-biting force of nature in the real-life boxing ring, and he's equally unstoppable on the NES. Prerequisites for taking him down include rote pattern memorization and unwavering twitch reflexes. Kid Dynamite can K.O. players in no time with his flurry of rapid-fire punches, something that prevented countless fans of the game from ever seeing the end credits. Former GI editor Dan Ryckert tried many times and failed to beat Tyson.

Dark Souls II

From Software's "Souls" games are renowned for their difficulty. Roadblocks like sinister traps and bosses that can one-shot hardily armored warriors are understandable reasons for not completing a game, but the game pits itself against you in far subtler ways. One late-game passageway that bars your progress requires either one million souls or four Grand Souls to pass through. The problem is, the game doesn't clearly communicate either of these prerequisites. Even further along in the game, players may want to take on the undead King Vendrick, only to find the zombie ruler can squash players unlike few other bosses in the series. You'd be forgiven for not understanding that in order to effectively fight Vendrick you need to collect a handful of Giants' Souls by diving into the memories of these petrified behemoths. From Software's cryptic game design is part of why we love them, and a big reason why many gamers likely haven't completed a single Souls game.

Xenoblade Chronicles

JRPG fans had to wait a while before Monolith Soft's epic Wii adventure made it over to the United States. Once it arrived, they were greeted with a deluge of content, including copious side missions that flesh out character relationships and build up reputations to unlock new items. Even if you blaze through the game with the finish line in sight, you're still looking at an 80-plus hour commitment. If you're the type of gamer who likes to stop and smell the roses while grinding through optional missions, the time investment increases dramatically.

X-COM: Enemy Within

Firaxis' return to the beloved, notoriously difficult alien-extermination strategy game is one of the most challenging of last generation. Commanding your team of extraterrestrial-busting badasses on the field can be tricky, thanks to Muton ambushes and the fragility of even the most veteran X-Com units. The permanence of death and unyielding series of UFO landings across the globe keep the punishing game moving at a stressful pace. Enemy Within takes the tense action a step further with alien assaults on your hidden ant farm. It's not uncommon for fans of the series to end up with an unsalvageable game where their best soldiers are dead and the aliens are arriving too fast and hard.

Keep reading to see where some more classic NES games and huge open-world adventures fit on our list