A semi-turnbased RPG in the vein of some of Final Fantasy's more recent ATB systems such as in XIII. The player is a customised character, but within the idea of a solitary, very resourceful warrior who tries to overcome impossible odds by using everything down to the tiniest resource to win.The setting is some sort of wasteland, most like Shadow of the Colossus's deserted plains after a series of natural and unnatural disasters shattered the earth and splintered the terrain into pieces. Twisted creatures from these fallouts roam the land, and with survivors few and far between, the warrior has taken it upon themself to be the single hand to make the area safe again.
Similar to Colossus, the main focus is boss battles, but there are still smaller enemies to supplement as it's not primarily about battling bosses but rather collecting and converting resources in preparation for those battles, then the boss battles, where the player can use everything they've prepared to attempt to succeed against far more powerful opponents.
As an example, the player has defeated the previous boss, and sees that the next fragment of earth is charred and the sky is dark. They decide the next zone is fire-based, look through the books they've collected along the way - books of alchemy, first aid, leatherworking, and so on - and see the alchemy book has a recipe for a potion of resist fire, and the leatherworking book has an antifire cape recipe in it. They backtrack to the last wasteland merchant to buy some empty phials and some thread, then hunt down imps for their leather and ashes, as well as some fireslimes for their fiery ooze. They combine the ooze with the ashes and water to make a potion of resist fire, and use the potion in combination with some imp leather and the thread to make an antifire cape, then make some more resist fire potions. They combine linen cloth with ground-up blasting powder from mining and use more thread for a wick to make some stun grenades, as they've been doing so far, then set off after selling their boots and buying some better ones from the merchant with the rest of their gold.
Defeating the boss of an area will clear it of many of the monsters and the rest will be easily avoidable when passing through, making it much safer, but the monsters are still good for experience and ingredients until you defeat the boss.
The twist to the game, and the reason for its name, is that remnants of the deceased linger where they died, as restless as the destroyed earth they walk on. They continually re-enact the scenes leading up to their deaths, like a spectral projection from the past into the present. These are sometimes contextual clues to warn the player when they get near hazardous terrain, to fill in the story or atmosphere such as seeing a group falling after a natural bridge collapsed when the player comes up to its remains, and so on. But the most important reason for their being there is during the boss battles. The remnants will phase in and out of the player's fight as though battling alongside the player, but without being aware of the player's presence - they're fighting the boss in the past, and as they die to it you can see where they went wrong and learn from their mistakes during your own battle. The fire boss might curl up, ready to counterattack the player with a massive attack if they swing at it, but if the player waits just a second they can see someone in the past trying exactly that and being incinerated, so the player might instead choose to throw their stun grenade to draw it out, then attack, and so on.
The game is mainly a spectacle strategy, and the reward for playing is the scenery and vistas, as well as seeing all the different bosses and figuring out how to defeat each one, and finding as many uses as possible for everything around the player. It would be a game for people who enjoy min/maxing, roaming vast landscapes, analysing everything and theorising about what might be possible, and thinking outside the box when it comes to fighting powerful bosses.
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Image: http://www.newgrounds.com/art/view/keepwalking/frozen-desert