Alien Invasyndrome

Alien Invasyndrome is a casual game set in outer space. Players become crew members of the exploration ship Atlas. They will explore different planets, encountering various alien creatures, and build deep bonds with the ship's many sexy crew members through story adventures and dialogue choices. This allows for intimate interactions and unlocks extremely erotic scenes. However, as the story progresses, players will encounter more dangers, such as alien larvae hiding on the ship. Players must distinguish between genuine and fake crew members and eliminate these dangerous creatures, protecting the purity of human bloodlines while building their own harem on the spaceship.

Gameplay of Alien Invasyndrome:

Like the arcade game, there is a two player option, which has the obvious advantage of doubled killing power, but you have to be very wary, because letting rips with fatal weapons rubs out your partner with just as much efficiency as it does the mutants. Scattered around the playing area, behind special panels, are weapons galore; a flame thrower, a bomb launcher, a lazer, a fireball flinger, and the inspiringly named 'options' which tag onto you and guard your behind, firing when you do. Only one weapon and two options can be held at a time, which is annoying.

There are loads of scientists scattered around the first level (shown on the score panel as companions); find ten and you can progress to the next level (leaving the rest behind to a slow sticky death - sick!). Here the scientists become harder to find, and the aliens are slightly more bent on killing you! The exit from this level leads into another room in which floats a vile and vast mega-monster who does his very best to wipe you all over the floor. These fairly disgusting entities are portrayed beautifully with liberal use of colour and pretty animation, something which is missing from the main part of the game where the figures are tiny, and the quarter scrolling (where the screen only moves when you get close to the edge) can create problems when you're dangerously close to hundreds of mutants just off screen!

Despite the several quite minor problems already mentioned, Alien Syndrome is a wonderful romp through some great carnage. This romp is made far more enjoyable by the two player option, although it would have been nice if the two players were impervious to each other's fire. It does make the game more challenging, though. Thumbs up!

Changelog:

v0.97 Demo

Charge Attack is now unavailable when the game starts

Added event for acquiring the Charge Attack (By accessing the nest)

Added Skill Tree menu for learning skills

You may see a bug that says you can learn it again after the first time, ignore it cause it is WIP.

Added event after boss fight (with sex animation)

Now you may release hypnotized NPCs. Open the command list (C key) to select that function while you have someone hypnotized.

The command list is now moved from B key (X on keyboard) to C key (C on keyboard).

Reviews of Alien Invasyndrome:

looks very promissing, and will likely be a great came, but my experience was pretty bad, i got softlocked 4 times and since it seems i can't save/load i had to re-do everything again (obviously the 4th times i stopped playing). So im looking forward for the full release (i expect the game to be a 5/5) but right now i couldn't play it (so 1/5). By doing math, and since you can't pu 2,5 stars, its a 3/5.

Very promising game. The premise - alien sexually assaulting humans on a starship - is simple but graphics are well done and the topic of evolving and getting stronger is very appealing.My only concern is that the game is supposed to be released mid-2026 but it doesn't feel it would be finished anywhere around that date, there is still so much more potential, game has really barebones gameplay and only 1st boss.

Love the game, the premise, everything. Its still a demo but its already great. Just needs more animations per woman, ship expansion for more areas, and it would be nice to have more mechanics with objects.I would like to see in the future a type of corruption progress done on each character depending on how many time they've been hypnotized and fucked. Leading to garment changes, and behavior changes. But it should be done in a way where if one persons corruption is too high from the rest, the crew would notice.

Once again, it’s just another “normal” day on < Atlas >. You take on the role of the alien in this game. Initially weak, you should use your skill to sabotage to gain strength and finally take control of the ship. Simple yet endearing, and I think there’s a lot of promise! It makes me think of one of those old-school point-and-click flash games where you were initially a tiny leech alien and had to interact with objects in a certain way to grow without dying. It’s a really underutilized notion and idea, thus this demo deserves praise. Anticipating its release! A basic game created by a basic developer.

Final Verdict:

Through the deep space of thousands of stars,Exploration Vesseladvances steadily.With a carefully chosen crew of female, they seek for a way to continue the bloodline of humanity.However, little do they know...hidden in the silent shadow of the cosmos, another kind also strives to pass on.Such kind hides in the crowd on the ship, anfrom a distant planet.