IN HEAT: Lustful Nights

IN HEAT: Lustful Nights

Early access since Jun 2024

IN HEAT: Lustful Nights puts you in the role of a newly recruited Security Guard on the tropical paradise of Diamond Straits, a haven for the rich and the degenerate to enjoy the island’s exclusive and revolutionary anthropomorphic entertainers. Welcome to your new career. Happy Hunting.

93% positive · 3,573 reviews
Not yet
In early access, content still planned
High confidence
Content Planned
Not yet
In early access, content still planned
High confidence
Content Planned

Where to buy

Steam $14.99
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Evaluation

IN HEAT: Lustful Nights is an actively developed Early Access game that continues to receive substantial content updates on a regular cadence. Since launch in June 2024, MonsterBox has shipped three major updates: the Dating + Gallery update (March 13, 2025), the Arcade update (December 18, 2025), and the most recent update on August 1, 2026 (U0.5.1), which added a new story date and a revamped Media Room. The August 1, 2026 update explicitly states that affection-level content "has not been developed yet, and will be added in future updates," and hints at further changes to the Media Room interface. The developer's April 1, 2026 devlog confirmed that Arcade Part 2 — featuring two full cinematics and a concluding level — is in active development, though it was still being reworked at that time. As recently as August 6, 2026, the developer posted bug fixes, confirming ongoing engagement with the game. MonsterBox has also been transparent about the game's trajectory: in December 2025, they described it as having "a long road to full release," and a July 2025 roadmap outlined the planned path to 1.0. A spin-off title, IN HEAT: Honeymoon! 3D, was announced in March 2026 as a separate project, with the developer noting that focus remains primarily on the main title. The game is clearly mid-development with substantial content still to come before a full release.
Evidence
U0.5.1 ships a new story date and Media Room, and explicitly states that affection-level content 'has not been developed yet, and will be added in future updates.' Also hints the Media Room will eventually be replaced by something new.
news post · Aug 1, 2026 source content planned
high
Developer devlog confirms Arcade Part 2 is in active development, featuring two full cinematics and a concluding final level. Acknowledges some slowdowns but confirms the team is continuing work.
news post · Apr 1, 2026 source content planned
high

Content

1 of 1 released · no outstanding content

Details

Developer
Publisher
Critical Bliss
Achievements
—
Platform
Windows, macOS, Linux
Controller
full support
Steam Deck
Verified
Players
Single-player

About this game

When you close your eyes, you can see it. You’ve dreamt about it for as long as you’ve known it existed: Diamond Straits, that island paradise where fantasy becomes reality, and where the fantastical collection of beautiful, exotic animal-human hybrid women serve your every desire.

You may never afford a trip there; you may never don a mask and have your thirsts quenched, but that doesn’t mean you can’t experience luxury from an entirely different angle.

Welcome to your new career.

IN HEAT: Lustful Nights puts you in the role of a newly recruited Security Guard on the tropical paradise of Diamond Straits, a haven for the rich and the degenerate to enjoy the island’s exclusive and revolutionary anthropomorphic entertainers.

The game contains three distinct modes, each with their own hurdles to overcome and mechanics to master as you try your best to keep your job, and your body, intact.

Security Office

Your first job in the company is in the Security Office: a rundown part of the island where the girls cause all sorts of trouble while you try to keep things running.

Mind your doors and sanity, perform plenty of microgames, keep the girls at bay, and keep yourself employed.

Survive those nights and you’ll earn your promotion to the second gamemode:

Nightclub

In the Nightclub, manage the girls’ excitement while partnering them with customers to maximize your score.

Keep an eye on customer preferences and patience, close the doors on girls that think you’re the best solution to their desperation, and keep operations running smoothly until the night ends.

Prove yourself a valuable asset and you might just be chosen for something more experimental.

Arcade

The Arcade brings you into a virtual world, offering a dynamic, ever-changing challenge that pits you and your wits against a variety of different characters all with their own behaviors and mechanics that you must learn and master.

Use all of your abilities and resources to keep the simulations at bay, and unlock Custom Night to craft your own personalized challenges to really push yourself to your limit.

Also...

Experience a whole range of animated scenes with each girl, and replay them as much as you like with the free-cam gallery.

Go on VN-style dates to learn more about the personalities behind the sex appeal.

And earn tokens every time you play, and use them in the Gachapon machine to unlock extra scenes for the video gallery as well as gifts to win over the girls’ affections.

There’s plenty to discover within Diamond Straits, and more is being added with each update.

The only questions are how deep will you delve into its secrets, and how long will you last if you do?

Happy Hunting.

Last evaluated Aug 27, 2026
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