Rising Angels: Reborn is the first game, available for free. It focuses on Major Natalie Puccile of Katajion Space Force as she takes up a new assignment. Her job title is Special Investigations and Tactics Officer (SITO), which means that although she doesn't command the ship she's assigned to (and has a lower rank than the person who does), she's responsible for the special mission it's being sent on — something which leaves a certain ambiguity as to who's actually in charge. The crew is far from harmonious, the thing she's being sent after is rather dangerous, and there's probably a traitor aboard. And even if she finds what she's looking for, she has to decide what to with it.
Rising Angels: Hope is a prequel focused on Faye Moonfallow, a secondary character from the main games. It deals with Faye's time at the military academy she attended before taking up her position in Reborn, and features a mix of previously-seen characters and new ones, many of whom reappear in the third installment, Judgement. Hope is an expanded and completed remake of Rising Angels: The Red Rose, an initial version of the game which was left unfinished. The Red Rose can be downloaded for free from the developer's website, while Hope is available on Steam and is the first game in the series to cost money.
Rising Angels: Fates, a sequel to Reborn, is currently under development. Rising Angels: Fates — Allegiance is one route that follows the Zuri romance route from the first game and was released as a stand-alone title. A third game, Rising Angels: Judgement, was released in 2019, and serves as a direct continuation to Allegiance with Kika Starr as the protagonist.
The series provides examples of:
- Absent Aliens: There are a variety of species around, but they're derived from humans, not alien life.
- Alternate Timeline: Canonically, Lenna ended up marrying Sol, so the route where Faye romances her in Hope splits off into an alternate timeline from the main series, as does the route where Faye romances Kika. Discussed if Faye romances Mildred the dragon-girl, as Mildred senses that they're canonically not meant to be together — which Faye misinterprets as Mildred trying to break up with her.
- Continuity Nod: Judgement references many of the events of Hope, with Jade and Yoi reappearing as adults.
- Cutting Off the Branches: Allegiance and Judgement serve as continuations to only one of Reborn's routes, where Natalie romances Zuri and turns the crystal over to Katajion Space Force.
- Doing in the Scientist: Judgement does this by revealing that the various Human Subspecies are actually not — and that many of them were created by godlike entities. Alphonse is revealed to be a villain and the acolyte of an evil god, while Kika Starr becomes the avatar of the entity encountered by the crew in Allegiance.
- Encyclopedia Exposita: Short database entries on various basic elements of the setting (countries and species, mainly) are available to players.
- Evil All Along: In Judgement, Alphonse is revealed to be an acolyte to an evil god and the mastermind of the crew's misadventures in the previous two games.
- Fantastic Racism: There is prejudice between humans and the various Human Subspecies. The in-game database indicates that it can be in both directions, but most of what we see is from humans. One character in particular, Sol Hackett, is particularly bad in this respect, which causes tension between him and the protagonist — they're old friends, but Natalie wants him to dial it back. Sol does turn out to care about the non-human members of his crew, but he still doesn't stop using Fantastic Slurs.
- Feudal Future: This appears to be the case for the Raltin Empire, but not for the other named countries. Even though democracies are said to be relatively rare, it seems that for non-democracies to go full feudal isn't the norm.
- Human Subspecies: In addition to humans, there are various other species around which were created from humans by way of genetic engineering. These include Space Elves, a wolf-like species (with Kitsune as a sub-species), an angel-like species, a demon-like species, a dragon-like species, and others. Actual aliens don't appear to be around. There's bigotry around, not all of it in one direction.
- Incompatible Orientation:
- In The Red Rose a love quadrangle develops between Faye, an elf named Yoi, a human named Lenna, and Lenna's racist childhood friend Sol. However, Lenna doesn't have romantic feelings for Faye and hooks up with Sol. This is changed in Hope, where Lenna can fall in love with Faye and break up with Sol instead.
- In Reborn, should Natalie choose to say that Alphonse is the cutest out of the given choices, Alphonse will almost literally state Sorry, I'm Gay. While Natalie does jokingly respond with All the Good Men Are Gay, she seems to take this in stride (which might be helped by her being bisexual herself).
- The Klutz: Zuri, the ship's security officer, has a reputation for accidentally breaking things. This is a plot point, because when a critical item gets destroyed and she had access to it, she's accused of breaking that too. She didn't — it was sabotage by someone else.
- Mistaken for Romance: Natalie assumes that Sol is involved with Faye and is disgusted given how verbally and emotionally abusive he is towards her; however, the prequel Hope reveals that Faye is a lesbian and there was once a love triangle between her and Sol over his eventual wife Lenna.
- Multiple Endings: Choices made in Reborn add up, with the results not necessarily being obvious until the end. In total, there are 7 numbered endings (whereof two Nonstandard Game Over-type, one premature ending, and four varying between Downer Ending and Golden Ending), including the one which the sequel follows on from. It is also not possible to get all of the CGs even after getting each ending once. Namely, ending 5 includes CG 7 by default, and can also include either CG 8 or 9 depending on how affectionate you got with other characters.
- The Mutiny: The conflicting claims to authority of Commander Rasoona (in charge of the ship) and Major Puccile (lower in rank, but in charge of the mission that the ship is on) can, depending on choices, result in disagreement as to who gets to make a certain crucial decision. If it comes to that, Major Puccile removes Commander Rasoona from her post — which is legal, but not accepted. This results in an unsuccessful attempt to regain control in which Rasoona is killed.
- Professional Killer: In Hope it's revealed that Yoi has been assigned to kill Lenna, but her growing feelings for Faye — who is in love with Lenna — keep interfering with her mission.
- Reassigned to Antarctica: At the start of the game, Natalie has just returned from a long solitary posting to a listening post in a swamp. She didn't like it at all, and is very glad to be back doing "real" work on a refreshingly solid, metallic ship. She considers it an injustice that she got sent there when "inferior" classmates got better assignments (and often failed at them).
- Space Elves: Most of the species derived from humans are known by invented names, but there are exceptions, and Elves are one of them. They seem to have a typical belief in their superiority, too.
- Pride: Natalie's problem in Reborn. She's convinced that her relegation to a remote listening outpost was an injustice, and that she'd have done a much better job than her classmates who were promoted past her. Mistakes made in the course of the game cause her to realise that she's not actually guaranteed results any better than the "incompetents" she dismissed, and that there are more important things than trying to prove her qualities to her superiors anyway.
- Tsundere: The wealthy kitsune heiress Kika Starr is arrogant, self-absorbed, and prideful, but genuinely cares about her friends and loved ones — even if she has trouble properly expressing this.
- You Are a Credit to Your Race: At the end of Hope, Sol tells Faye that she doesn't fit into his view of non-humans — which is the closest he comes to complementing her. He tones this attitude down a bit in Reborn; while he still goes around calling non-humans insulting names, he will give credit where credit is due. The way he is written in that game also seems closer to an Surrounded by Idiots attitude than outright distaste for everyone of the species involved.
- Yuri Genre: While romance isn't necessarily the focal point of the series, all the available romances for the player in Reborn are between women, and Allegiance is outright called a Yuri novel on its itch.io page.
- Verbal Tic: In Hope Faye howls whenever she's stressed out.
- What Is This Thing You Call "Love"?: Yoi is a flirtatious, promiscuous cynic who uses sex as a means to numb the pain of her harsh upbringing; and considers "love" to be a delusional extension of lust. Falling in love with Faye leaves her confused and increasingly distraught.