Alien Sex Date is a 2D animated adult game made by Hornblase in Flash. It puts you in a sci-fi setting where an evil robot overlord threatens the galaxy, and you need a spaceship to fight back. A sexy scientist asks you to help her research by sleeping with alien girls. You play as a male protagonist in a space shooter with level-up elements, unlocking adult scenes as you progress. The tone leans into harem and monster-girl themes.
The current build is v4.8b1, dated January 15, 2026. It runs on Windows, Linux, and Mac in English, with no censorship. Development is ongoing, and the latest changelog entry, v4.2.1, added a file menu with four save slots. It also fixed the instructions screen and corrected an issue where clicking return to title while leaving the arsenal sent you back to the title page.
Developer's description
This game is intended for adults only. All characters in this game are entirely fictitious and are above 18 years of age.
Spoiler
The Evil Robot Overlord wants to take over the galaxy!
It's up to you to save the day but you need a spaceship...
Luckily there's a
sexy scientist
who wants you to assist in her research by
sleeping with alien girls.
Alien Sex Date is a space shooter with level up elements. Unlock H scenes through playing the game.
Spoiler:
Trailer
v4.2.1
New Stuff
1. Added a file menu that includes 4 save slots.
Revisions:
1.Fixed the instructions screen.
Fixes:
1. Accidentally clicking the return to title button when exiting the arsenal does not return to the title page.
v4.1:
New Features:
1. New unlockable sky turtle girl: nerd + sex scene
2. New unlockable sky turtle girl: punk + sex scene
Revisions:
1. Changed the icon for gallery 2
The game now has 41 unlockable characters. But we're not stopping there! <3
v3.9.1
It only makes sense that the public version also benefits from the overall fixes and adjustments of the Subscriber's copy. While the exclusive versions will be locked such as the extra galleries, the best version of the game can now be played in browsers!
Should anyone wish to upgrade to a Subscriber's copy with a code, it can simply be obtained through the in-game link. Or
here
!
v3.9
New Features:
1. New unlockable alien girl: Fungunoid + sex scene
2. New unlockable alien girl: Vibrolenti + sex scene
3. New unlockable alien girl: Homolith + sex scene
4. New unlockable alien girl: Tentapod + sex scene
5. Added a cash display on the alien contacts page
Fixes:
1. Fixed soundless buttons everywhere
2. Fixed the Gigern price display
v3.5.1
New Features:
1. Alien contacts implemented: new room for accepting alien visitors
2. New unlockable alien girl: Dracaena + sex scene
3. New unlockable alien girl: Lil' Gray Alien + sex scene
4. New unlockable alien girl: Gillian + sex scene
5. New unlockable alien girl: Gigern + sex scene
Fixes:
1. reduced the torpedo type enemy speeds
2. reduced the companion bits speed during testing
3. fixed the level 8 normal boss hitpoints display
4. fixed cum sfx assignments
