
Dive into a thrilling survival adventure where an unknown liquid takes control of your life. Extract Serum to stay alive, battle dangerous creatures, solve puzzles, and uncover clues about past events.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.43/day in the week to Aug 25 → 0.43/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About









Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Engagement
Reviews
Themes across 49 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
dont buy the game, the development studio was closed down without any notice to the consumers, and the publisher kept lying about the game being worked on when in reality it has no team to handle said development, they keep throwing out lame ass discounts for a product that quite frankly is far not a functioning product if you read this.. spend your money somewhere else, not on this abandonware. publisher clearly doesnt care about the small fanbase the game once had with how they are trying to squeeze every last penny out from the people interested in it.
Game has been abandoned - not updated for over a year. Do not buy
Media

Related
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, German, Spanish - Spain, Polish, Turkish, Russian, Ukrainian, Portuguese - Brazil, Simplified Chinese, Japanese, Korean*languages with full audio support
Hours played at review time, across 49 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
I can't/won't recommend this game. The original developers abandoned the game. The publisher has done nothing but lie, they are grifters. Instead of pulling the game from steam or at the very least, be honest about the state of the game and drop the price to $5.00, they leave it at full price and mention nothing, hoping the ill informed few will buy their abandoned game. I will never buy another game that has this publishers name on it. Be warned
i would have recommend this game a few years back, when i got it but now its just another dead game that dev just walks away from don't buy it.it hasn't got and update in almost a year and just radio silence
Do not buy, its been completely abandoned
The only thing you'll get from this Serum is a bad case of the Early Access blues... It's abandoned.
Adding this to the wall of shame. There needs to be a stricter/harsher consequence for these publishers/developers that do these bait and switch tactics to keep pushing 10% completed games that have been abandoned.
Spent an hour playing yesterday. Got to the next biome. Load up game today and I spawned at the very beginning of the game only no cutscenes activated and I was apparently locked inside that starting area with no way to leave. Suicided by jumping and taking fall damage. Hit respawn and I did spawn at my base but everything I had crafted and found was gone and I also didn't have access to any of the benches. Cannot recommend the game in it's current state. I do dig the visual vibe of the game though.
This is a dead game. The creators dropped it without completeing it. Very buggy with lots of, spend tonnes of time searching for any crafting item you really NEED, instead of actual gameplay. This game is still up for sale, along with a soundtrack and a bunch of other cr*p which still amazes me steam is allowing this game to sell AT ALL. Could have beena good game but evs got there money and dumped it and refuse to even talk about it anymore. Just the fact alone it has had no updates at all since MAY 2025 and s an early access game should have alerted STEAM but for some reason they keep allowing this to sell. Do yourself a favour and just set the money you would spend on this game on fire. It's worth it just to avoid the frustration of this game.
Cool idea of a game as well as atmosphere, but the game is broken in numerous ways that prevents you from continuing through the story. Recycling at workbenches is also a broken game mechanic that doesn't give you resources back. I attempted to reach out to the devs and also on Discord, but it appears that this game developer and publisher aren't putting more effort into this. Don't buy it
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $3.5K | 12 | 58% | $13.99 | |
| — | 7 | 71% | — | |
| $26.3K | 77 | 92% | $15.00 | |
| $1.7K | 6 | 67% | $9.99 | |
| $362 | 32 | 47% | $0.99 | |
| $167 | 1 | 0% | $7.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $161.4K | 389 | 82% | $12.59 | |
| $161.5K | 589 | 77% | $9.99 | |
| $161.5K | 716 | 98% | $9.99 | |
| $161.6K | 1.3K | 85% | $4.99 | |
| $161.3K | 510 | 74% | $7.99 | |
| $161.6K | 296 | 69% | $14.99 |