History YMMV / JupiterHell

** The game's marketing advertised its premise as being "like chess, with shotguns!" ''Jupiter Hell'' predates by a few years the 2022 turn-based strategy game ''Shotgun King: The Final Checkmate'', which consists in a VariantChess where you play as a lone shotgun-wielding black King against all the white chess pieces.

* HilariousInHindsight: This isn't the last time the creator of a ''VideoGame/{{Doom}}'' fangame has made a stand-alone, commercial SpiritualSequel of said fangame which isn't part of the ''Doom'' franchise, as Sergeant_Mark_IV is developing a SpiritualSequel of his famous ''VideoGame/BrutalDoom'' mod named ''Brutal Fate''. Last but not least: both ''Jupiter Hell'' and ''Brutal Fate'' are set around Jupiter.

* ThatOneLevel: Callisto Anomaly. The branch that leads to it can generate as early as ''Callisto 2'', and is also chock full of demons, which means by the time the player hits Anomaly it's highly likely they're low on ammo, badly wounded, and not having much in the way of equipment or trait building. But what's that? [[SchmuckBait An empty space in the middle surrounded by healing and rare items?]] [[TeleportingKeycardSquad Cue teleport sigils]], [[DemonicSpiders archreavers]], and a quick trip to the post-mortem screen.

* HilariousInHindsight: This isn't the last time the creator of a ''VideoGame/{{Doom}}'' fangame makes on a stand-alone, commercial SpiritualSequel of said fangame which isn't part of the ''Doom'' franchise, as Sergeant_Mark_IV is developing a SpiritualSequel of his famous ''VideoGame/BrutalDoom'' mod named ''Brutal Fate''. Last but not least: both ''Jupiter Hell'' and ''Brutal Fate'' are set around Jupiter.

* DifficultySpike: Io is where the game starts getting rough. Not only are you faced with heavily armored and high HP CRI bots, but it is also where plasma and poison enemies (the latter of which are mentioned on DemonicSpiders) start appearing.

* DemonicSpiders: Toxic Reavers, which hurl toxic balls at you that not only hurt like hell, but turn the tile you're on into acid. This in turn forces you into either eating further hurt (if you keep attacking the reaver) or moving out of the acid (squandering a turn and possibly your cover). Either choice can get you killed if you're being careless.
* HilariousInHindsight: This isn't the last time the creator of a ''VideoGame/{{Doom}}'' fangame makes on a stand-alone, commercial SpiritualSequel of said fangame which isn't part of the ''Doom'' franchise, as Sergeant_Mark_IV is developping a SpiritualSequel of his famous ''VideoGame/BrutalDoom'' mod named ''Brutal Fate''. Last but not least: both ''Jupiter Hell'' and ''Brutal Fate'' are set around Jupiter.

* ScrappyMechanic: Pain, which is even ''worse'' than its ''VideoGame/{{DRL}}'' equivalent. Every time the marine takes damage it adds a stacking debuff to accuracy, which can quickly lead into a death spiral as the player can't fire back or reliably escape without taking massive damage, especially in the case of beefy melee enemies.
** Luckily, Pain only lasts a few turns - but it can still be an unpleasant surprise to someone used to more traditional roguelikes, a genre where most games religiously observe CriticalExistenceFailure.

* DiscOneNuke: With a good bit of luck, one gets an ADV weapon with great modifiers and stats as early as ''Calisto 2''.

* DiscOneNuke: With a good bit of luck, one get an ADV weapon with great modifiers and stats as early as ''Calisto 2''.

* MostWonderfulSound: That squishy meat noise an enemy makes when you manage to gib them. It's satisfying even below Nightmare difficulty (where rampant gibbing is useful if not mandatory for survival).

* ScrappyMechanic: Pain, which is even ''worse'' than its [=DooMRL=] equivalent. Every time the marine takes damage it adds a stacking debuff to accuracy, which can quickly lead into a death spiral as the player can't fire back or reliably escape without taking massive damage, especially in the case of beefy melee enemies.

* ScrappyMechanic: Pain, which is even ''worse'' than its [=DooMRL=] equivalent. Every time the Jupiter Marine takes damage it adds a stacking debuff to accuracy, which can quickly lead into a death spiral as the player can't fire back or reliably escape without taking massive damage, especially in the case of beefy melee enemies.

* DiscOneNuke: The 9mm Calibrated. It deals Pierce damage, which means double damage while ''halving'' Damage Reduction against enemies with armor (And on higher difficulties, this means nearly all of them), and doesn't have the single mod limit of ADV. weapons. Combined with the 9mm Pistol's already decent range, fast swap time, and common ammo, it can see you through most of the game. (And longer if the player is a Technician and mods it further)

* ThatOneLevel: Callisto Anomaly. The branch that leads to it can generate as early as ''Callisto 2'', and is also chock full of demons, which means by the time the player hits Anomaly it's highly likely they're low on ammo, badly wounded, and not having much in the way of equipment. But what's that? An empty space in the middle surrounded by healing and rare items? [[TeleportingKeycardSquad Cue teleport sigils]], [[DemonicSpiders archreavers]], and a quick trip to the post-mortem screen.

* ScrappyMechanic: Pain. Every time the Jupiter Marine takes damage it adds a stacking debuff to accuracy, which can quickly lead into a death spiral as the player can't fire back or reliably escape without taking massive damage, especially in the case of beefy melee enemies

* ThatOneLevel: Callisto Anomaly. The branch that leads to it can generate as early as ''Callisto 2'', and is also chock full of demons, which means by the time the player hits Anomaly it's highly likely they're low on ammo, badly wounded, and not having much in the way of equipment. But what's that? An empty space in the middle surrounded by healing and rare items? [[TeleportingKeycardSquad Cue teleport sigils]], and a quick trip to the post-mortem screen.

* DiscOneNuke: The 9mm Calibrated. It deals Pierce damage, which means double damage while ''halving'' Damage Reduction against enemies with armor (And on higher difficulties, this means nearly all of them), and doesn't have the single mod limit of ADV. weapons. Combined with the 9mm Pistol's already decent range, fast swap time, and common ammo, it can see you through most of the game. (And longer if the player is a Technician and mods it)

* DiscOneNuke: The 9mm Calibrated. It deals Pierce damage, which means double damage against enemies with armor (And on higher difficulties, this means nearly all of them), and doesn't have the single mod limit of ADV. weapons. Combined with the 9mm Pistol's already decent range, fast swap time, and common ammo, it can see you through most of the game. (And longer if the player is a Technician and mods it)

* DiscOneNuke: The 9mm Calibrated. It deals Pierce damage, which means double damage against enemies with armor (And on higher difficulties, this means nearly all of them), and doesn't have the single mod limit of ADV. weapons. Combined with the 9mm Pistol's already decent range, fast swap time, and common ammo, it can see you through most of the game. (And longer if it's bullet spam cousin, the [[InfinityMinusOneSword 7.62 Pierce Rifle]] doesn't drop)

* ThatOneLevel: Callisto Anomaly. The branch that leads to it can generate as early as ''Callisto 2'', and is also chock full of demons, which means by the time the player hits Anomaly it's highly likely they're low on ammo, badly wounded, and not having much in the way of equipment. But what's that? An empty space in the middle surrounded by healing and rare items? [[TeleportingKeycardSquad Cue teleport sigils.]]

* ScrappyMechanic: Pain. Every time the Jupiter Marine takes damage it adds a stacking debuff to accuracy, which can quickly lead into a death spiral as the player can't fire back or reliably escape without taking massive damage, especially in the case of beefy melee enemies

* DiscOneNuke: The 9mm Calibrated. It deals Pierce damage, which means double damage against enemies with armor (And on higher difficulties, this means nearly all of them), and doesn't have the single mod limit of ADV. weapons. Combined with the 9mm Pistol's already decent range, fast swap time, and common ammo, it can see you through most of the game. (And longer if it's bullet spam cousin, the [[InfinityMinusOneSword 7.62 Pierce Rifle]] doesn't drop)