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'''''Eschatos''''' is a VerticalScrollingShooter developed by Qute Corporation and released on UsefulNotes/{{Xbox 360}} in 2011. It is the SpiritualSuccessor to ''VideoGame/JudgementSilversword''.

Like in ''Judgement Silversword'', the game is split into a few dozen areas, with a BossBattle every several areas, and the player pilots a ship with a SpreadShot, a narrow shot, and a shield. New to this game are the presence of multiple gameplay modes:
* '''Original''', in which the player has constant shot power and tries to kill waves of enemies as fast as possible without letting any escape to rack up points.
* '''Advanced''', which uses the power-up system (the player ship starts with weaker weapons than Original, but eventually gets more firepower than in Original), has more lenient penalties for missing enemies, and introduces purple pyramid point items that spawn whenever bullets are cancelled or blocked.
* '''Time Attack''', in which the player tries to complete the game as fast as possible, within the time limit. Time extends when going to a new area. The player has unlimited lives, but dying will take 5 seconds off of the time limit. At the end of the game, the player's remaining time is subtracted from the clear time.

Although the game is [[NoExportForYou Japan-only]], it is region-free, so the game can be played on any Xbox 360 regardless of its region code. In 2012, Qute released the arrange soundtrack for use with the game, in the form of DLC. A spiritual successor, ''Ginga Force'', was released in February 14th, 2013, followed by a CompilationRerelease four months later bundled with ''Eschatos'' and the games' soundtrack. A PC version of ''Eschatos'' was released through Steam on September 18, 2015 along with a port of ''Judgement Silversword''.

!!Eschatos contains examples of:
* OneUp: Like in ''Judgement Silversword'', these tend to come at a mildly generous pace.
** In Time Attack, 1-ups will restore your time limit by 15 seconds.
* BulletHell: ''Eschatos'', as well as its spiritual predecessors and successor, will unleash a hailstorm of bullets akin to arcade shooters of old.
* CompilationRerelease: The ''Ginga Force & Eschatos Wonder Pack'', bundling ''Eschatos'' and ''Ginga Force'' along a soundtrack with music from both games.
* DeathIsASlapOnTheWrist: In Time Attack, you get unlimited lives, and dying subtracts 5 seconds plus whatever time is lost waiting to respawn.
* DroughtLevelOfDoom: The game is usually fairly generous with 1-ups, but Stage 3 (Areas 12-15) has no 1-ups at all.
* EmbeddedPrecursor: The game includes enhanced color versions of ''Judgement Silversword'' and ''Cardinal Sins'' in the game.
* EndlessGame: Original and Advanced have the "Endless" difficulty, which starts off at the equivalent of Easy and progresses up the difficulty tiers each time you finish one playthrough.
* HardModePerks: Your maximum score multiplier increases with higher difficulties. The max multiplier is x10 on Easy, x20 on Normal, x50 on Hard, and on Hardest there is no maximum multiplier.
* HarderThanHard: Hardest difficulty, which is so hard that on the Xbox Live leaderboards, only one player in Original Mode and one player in Advanced have cleared it.
** However, M-KAI has stated in an interview that the game is designed with Hard mode as the "main" difficulty in mind, arguably subverting this trope.
* PowerUp: In Advanced Mode. Obviously, it makes your shots stronger; in addition to that it raises your multiplier. However, your shield capacity decreases as you gain more powerups.
* {{Retraux}}: The soundtrack is done in FM synth by Yousuke Yasui, a game music composer well-known for making retro-style game music. The graphics also give off a very Sega NAOMI look and feel to it
* ScoringPoints: Like in ''Judgement Silversword'', the points you collect at the end of each run (except in Time Attack mode) are used to increase your "Option Level" and unlock new features. Anyone can unlock all of the bonus features with enough time and dedication, but skilled players will unlock the bonuses faster.
* SmartBomb: The "F" powerups, which wipe all bullets from the screen and do slight damage to all on-screen enemies.
** However, collecting it in Advanced will decrease shot power and multiplier, so be careful picking it up. So if you're playing for score, these basically become extra bullets!
* SpiritualSuccessor: ''Eschatos'' is one to ''Judgement Silversword'', while the former gained one with ''Ginga Force''.
* SpreadShot: {{Nerf}}ed since ''Judgement Silversword''. Except at lowest firepower in Advanced, the spread shot does not have any directly-forward coverage.
* TimedMission: Time Attack mode. Clearing areas and getting a OneUp will extend the time limit, finishing a sub-area will freeze it, getting killed takes off 5 seconds, and there are no continues.
* UnstableEquilibrium: Dying not only reduces your multiplier by one, but it also allows enemies to escape in the time that you spend respawning. Enemies that escape during the respawn delay do count towards the multiplier penalty. On Original mode, dying during a large wave of enemies means your entire multiplier will most likely disappear, thereby destroying an entire stage of efforts.
* WeirdMoon: The moon appears to have been corrupted by the alien forces. [[spoiler:You restore it when you defeat the FinalBoss.]]