
Cerulean Invasion is an engaging BL / Yaoi / Gay / Bara / Queer / NSFW (18+) visual novel featuring space cadets and enticing romance. Follow our characters as they embrace their sexuality and explore their newfound romance.
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About
Cerulean Invasion is an engaging BL / Yaoi / Gay / Bara / Queer / NSFW (18+) visual novel featuring space cadets and enticing romance. Follow our characters as they embrace their sexuality and explore their newfound romance.

In the aftermath of the Prothinian invasion of a lunar colony, citizens are conscripted to protect mankind from the alien aggressors. Journey through the eyes of Alexis as he navigates through the ripple effects of war, forming close bonds with his comrades — Osman, Evan, and Leon — along the way.
Engaging Story: ≈75k words (approx. 6 hours of play)
Stunning Original Artwork: Sprite and CG art by Zinq
Detailed CGs: 20+ CGs (not counting variations)
18+ Scenes (incl. threesome)
In-Game Achievements
And so much more!
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Engagement
Hours played at review time, across 20 reviews with recorded playtime.
Reviews
I really liked the game. It's a shame there wasn't more Osman. I would have liked to see more content related to him in the game. The graphics are top-notch. It's also sad that there isn't much playing time. If you've played Red Ops, you'll definitely like this game. Thank you to the developers for their hard work.
Gay boys ✅ Gay sex ✅ Gay penis ✅ Gay game ✅ Play this game, and you too shall become gay. U r gae.
以这个价位来说不值。后续是线性剧情,基本上就是大段大段的描述和对白,选项很少,关键选项更少,基本上没有分支。整个故事出现的人物也就是demo里的那几个。不需要攻略,都能睡到。CG不多,也不够精致。整体来说不推荐。
I'm glad I supported this visual novel's Kickstarter and was very excited to play it as soon as it was released. The writing is more than adequate and very captivating — detailed enough for me to imagine everything that is happening in my mind but also lively and stimulating enough to keep me excited and anticipating what would happen next. It is also humorous at times as well and I enjoyed reading it immensely. The story is a bit on the shorter side, which is fine, though it left me wanting more after finishing it. The visuals are seriously high quality, vivid, and very highly detailed. I felt like I was right there along with the characters and felt the ambience of every scene, the cosmic dread of being deep in space. I also really enjoyed the sleek, sexy, ultra-modern outfits the characters wear. Of course, the H-scenes are very hot, explicit, and enjoyable. If you like racy, X-rated, hardcore sex scenes then you definitely won't be disappointed. Also be prepared to get the feels from the music, from cinematic and emotional, to light-hearted and uplifting, to existential and meditative. Overall, I was impressed with the quality of the visual novel and can't wait to see what Vincere Studio creates next. My only suggestion would be to add Steam achievements and maybe even some Steam trading cards, though the in-game achievements felt satisfying enough. I would definitely recommend this game to anyone who loves gay visual novels, especially if you like the sci-fi genre.
I've been waiting for this title to come out for months and I can confidently say I'm not disappointed. While the dialogue and scenarios at times can be a little lack luster and borderline hard to watch, I think the developer did a great job fleshing out the sci-fi themed story and world which reminds me of one of my favorite BL titles on the platform which is The Symbiant! The characters are all endearing and charming in their own way despite some minor tweaks that could be improved upon on the way their written, specifically in the romance aspect. A lot of it feels rushed and I don't fault the developer cause I'm sure it's quite a lot of work to produce a game at this scale and write over 100K+ words and do all the programming for that, but it leaves you wanting a lot more. I personally enjoyed the side story between Evan & Ollie and thought it was super sweet especially tied in with the story's plot and Evan's backstory that gets revealed end game. All of the CG's, backgrounds, and character designs are flawless and gorgeously drawn! It's always a pleasure to see more games with beautiful artwork and see more sci-fi and futuristic/apocalyptic themed games in contrast to some of the more plain themes that are popularized nowadays in the genre. Definitely a fun time killer and worth a shot if you're looking for more BL, just wish it wasn't so short but what can you do? Bravooooo!
The quality of the scenes.. Just excellent! The dialogue font size being a bit small and the lack of a button to hide the dialogue window (maybe I just couldn’t find it) are just minor blemishes on an otherwise great experience. Honestly the CG alone makes it worth buying.
This game was short but overall very enjoyable to play the vibes this game just immediately puts you in the atmosphere the game is trying to portray. I also thought Leon x Alexis were really cute as a couple and kind of glad that the MC pretty much had a canon partner because most BL visual novels don't do that. My only real gripe with the game is the last chapter of the game has a strong tonal whiplash from the rest of the game that is kind of glaring and then the game just ends after it traumatizes the characters. I would still recommend this game for the art and characters alone as I enjoyed getting to know them and bang each other lol (all the Leon and Alexis sex scenes plus their threesome scene with Evan chefs kiss). Overall, I would definitely recommend this game for the BL lovers but not the people who are expecting a thorough exploration into the Science Fiction Genre.
Prior to starting this, the game had seemed fairly auspicious given how 'eye-catching' the visuals and layout appeared despite it not being too radically different from the general Ren'Py VN setup. I will commend the artist for their drawing style and it is the game's major saving grace. But where it underperformed for me was the lack of depth in the plot outside of the filler humor as well as the lack of personal autonomy in choices. I will admit that I had gotten a few genuine laughs out of the playful banter. I did enjoy the way that the sense of fraternity was established even if others could consider it cheesy--there's still merit in it. But otherwise, I feel as if the plot had missed out on the biggest opportunity on developing the war against the Pronithians and any thought-provoking lore as a result. There was an introductory attempt at it albeit I could be expecting too much from an 18+ BL visual novel. Personally, I find there to be a lasting effect when a BL visual novel game finds a way to stand out in the more serious part of the plot while still incorporating romance elements in a way that they work synergistically rather than one detracting from the other. The lack of autonomy was enough for me to be considered a bit bothersome. Despite the game giving its best effort for every character to have meaningful interactions with one another, I'd rather if the game gave the player a sense of individual choice that has influence on all subplots rather than merely playing through a sequence of predetermined events and choices only providing a 'cherry on top.' To concisely assemble my thoughts together, I didn't wanna be doing stuff with some f*ck @ss other dude. I'm loyal at heart. Nevertheless, this was a good 3/5. I wouldn't necessarily say that it's a bad game at all and I do wanna laud the developers for what I did like about the game. But it's not anything that sticks out to be very memorable for me though it may still be great for someone else!
劇情還算流暢,CG 完成度高,也有許多角色間的調情,適合喜歡聽別人聊天的玩家
♡
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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