Corpse Party: Sweet Sachiko's Hysteric Birthday Bash

Corpse Party: Sweet Sachiko's Hysteric Birthday Bash

MAGES. Inc. · 2019 · Gore, Violent, Adventure, Visual Novel, Anime

PC
Very Positive85% · 185
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$19.99
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About Corpse Party: Sweet Sachiko's Hysteric Birthday Bash

Sachiko Shinozaki, tragically murdered at age 7; such a sweet girl, taken away at such a young and tender age! Sure, she may have reacted by becoming a bloodthirsty, vengeful spirit responsible for the deaths of countless other children, as well as their erasures from history, but everyone knows that in her heart of hearts, she’s just an ordinary, innocent little 7-year-old…right?

Well, no. Because you see, today is her birthday! She’ll be turning…7 again, naturally. But in celebration, she’s decided to grant all her victims 24 hours of amnesty from their suffering by gathering them all together for a…hysteric? birthday bash. There will be party games, entertainment, adventure, and most of all, romance!

Join Sachiko and the lovable cast of damned souls from previous Corpse Party games—along with a few new faces—as they take the very concept of genre and toss it aside. Prepare to experience terror, discomfort, joviality, and confusion in equal measure as Heavenly Host Elementary plays less-than-heavenly host to cooking contests, co-ed mixers, interpretive stage drama, traditional party games, and Lovecraftian horrors alike.

Because you know what they say: Hell hath no fury like a 7-year-old girl bored…


A (surprisingly) canonical “midquel” to Corpse Party and Corpse Party: Book of Shadows, taking place sometime during the course of those games, Corpse Party: Sweet Sachiko’s Hysteric Birthday Bash recounts the bizarre events of vengeful ghost girl Sachiko Shinozaki’s one-of-a-kind birthday party held in the otherworldly school where so many lives have been lost in previous games: Heavenly Host Elementary.

The game plays out as a visual novel, divided into eight main chapters that each detail a different activity or cluster of activities. Player decisions determine which of the game’s endings is attained, with only one true ending from each chapter leading into the next. Surviving to the end will require thinking like Sachiko and making the choices that will please her the most…but with the fewest casualties.

KEY FEATURES



Dark Comedy and Nonstop Fanservice
Put on a play, make a movie, attend a mixer, run a race, cook some curry, and more! Indulge Sachiko’s whims, and see new sides of fan-favorite characters in the process.

28 Endings Later
Player decisions lead to one of 28 endings, including countless bizarre deaths.

Extra Chapter Presented in Traditional Horror Style
Complete the game to unlock a traditionally styled Extra Chapter detailing the tragic backstories of new characters Azusa Takai and Ran Kobayashi.

Japanese Voices Like You’ve Never Heard Them Before
All original actors reprise their roles, but take them to new and unexpected places…

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Apr 19, 2026
6/10 Corpse Party: Sweet Sachiko's Hysteric Birthday Bash is a spinoff horror comedy visual novel set in the Corpse Party series following Sachiko’s birthday celebration. Campy and all over the place. Corpse Party: Sweet Sachiko's Hysteric Birthday Bash is a spinoff of the Corpse Party series in the style of a horror comedy visual novel. The best part about Corpse Party: Sweet Sachiko's Hysteric Birthday Bash is without a doubt the ending, which provides more context to the series as a whole. The art style, music, and sound effects used are wonderful and added to the overall atmosphere of the game. I liked the usage of the gymnasium! The title plays like a typical visual novel so a lot of reading is required. I recommend playing through the Corpse Party series before starting this spinoff. I experienced no bugs while playing. It took me ~13 hours to complete the title with all achievements. There aren’t cards but there are Steam Point Shop items available. No moments were particularly funny and because of the campy way they wrote the visual novel, the horror aspect falls flat. The whole story felt like fanfiction and the tone felt extremely offputting. It’s the weakest in the Co…
2 found this helpful
Recommended Dec 27, 2025
It’s Sachiko’s birthday party, and you’re invited to enjoy some (deadly) festivities with all your favorite characters from the previous Corpse Party games, along with a few new faces. It’s far more lighthearted than most entries in the series, but no less enjoyable. It’s all meant to be fun anyway—as the opening scenario says—and that’s the best way to approach this one.
2 found this helpful
Recommended Jan 20, 2026
Great game for Corpse Party CHARACTER enjoyers ♡ So first of all, this is solely a VN, not like in Book of Shadows where you can still walk around and inspect things. It's a mostly funny, lighthearted comedy with great Corpse Party moments (≧▽≦) The character cast in this one is big, and it even introduces some new characters that appear in the sequel, Blood Drive. For me, most of the chapters were a great read, and they have some funny endings :) I'm so happy to see some of my favorite characters not in pain and just running around (✿◕‿◕) Now for some of the cons that could make some people hesitate to buy this ʕ•ᴥ•ʔ Some scenes are weirdly uncomfortable, like over-sexualized scenes and some weird stuff that's said. So I had to just read one chapter fast because I really didn't wanna play it… (´•̥ ω •̥`) That being said, the voice acting and CGs are really nice again in this game, and the interviews are also interesting(^ω^)
1 found this helpful
Recommended Dec 18, 2025
Getting backstabbed is the funniest ♥♥♥♥ ever.
1 found this helpful
Recommended Nov 23, 2025
Evil loli holds a Birthday Party with all her victims, and [spoiler] becomes slightly less evil [/spoiler] at the end of it. Welcome to Hysteric Birthday Bash, also known as Corpse Party 2U. If you're a fan of the series and made it through Book of Shadows, you're going to really enjoy this entry! Gone are the rules of sticking to the hard and fast lore of Heavenly Host, the writers have had complete freedom to play around with all of your favourite characters and throw them in all manners of hilarious and amusing situations. Yes this game is stuffed with fan service, and yes - some scenarios can drag on a bit longer than they need, but overall this entry is far more worth it than it appears as just some comedic spin off. Just like Book of Shadows, it's presented in a visual novel style format, but it's makes some improvements with autosaving at every point you're given an option. This makes reloading to go for different options (and therefore different endings) much more convenient. If you're aiming to play these games in succession, I'd still recommend playing this one before Corpse Party Blood Drive. This will introduce you to some characters prematurely, but I still found i…
1 found this helpful
Recommended Nov 28, 2025
Corpse Party: Sweet Sachiko’s Hysteric Birthday Bash is one of the most unusual and polarizing entries in the Corpse Party franchise, a deliberately offbeat detour that transforms the series’ usual atmosphere of relentless dread into a bizarre fusion of dark comedy, fan-service satire, and macabre party games. Developed by MAGES. Inc. and 5pb. and published by XSEED Games and Marvelous USA, the game serves as a midquel that wedges itself between the tragedies of the original Corpse Party and Corpse Party: Book of Shadows. Instead of continuing the descent into terror, it constructs an alternate scenario where Sachiko—normally the malevolent force behind the horrors of Heavenly Host—decides to celebrate a birthday by forcibly gathering victims and survivors from across the timeline. The result is a surreal narrative playground where characters who died in previous installments mingle freely, trapped not by curses or despair but by a childish yet terrifying spirit demanding entertainment. At its core, the game is a visual novel divided into multiple chapters, each structured around Sachiko’s peculiar “party games.” The format embraces branching choices that lead to drastically diffe…

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