Game · Released

Slime Trader

Summon, place, and merge slimes to stop the larvae pouring from the pen. Collect 111 slimes across 12 grades from F to XXX, grow through runes and rebirths, trade eligible Steam Inventory items, and climb the stage leaderboard in this casual pixel-art horde defense game.

Release date
September 19, 2026
Platforms
Windows
Developer
Lonely Knight
Publisher
Enter the Game Studios
Slime Trader artwork
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Store description

About Slime Trader

MERGE SLIMES. HOLD BACK THE SWARM. The pen is filling with larvae, and your slimes attack automatically from outside the fence. Summon random slimes, drag them into position, and merge two of the same grade to create a stronger one. A modest defense line soon becomes a screen-filling battle against a relentless swarm.BUILD YOUR OWN DEFENSEDiscover 111 unique pixel-art slimes across 12 grades, from F to XXX.

As grades rise, new attack styles become available—from single shots, piercing rounds, and spread fire to flames, lasers, explosions, and rocket barrages. Every merge can change the resulting type, so adapt your formation as it grows.RUNES AND REBIRTHSEquip up to 16 runes and combine eight effect types, including damage, attack speed, critical hits, range, gold gain, boss damage, overdrive charge, and rebirth-point gain.

Rebirth returns stage progress to 1-1 and grants points for drawing more runes, while your slimes, gold, and summon cost remain intact.OWN, TRADE, AND COMPETE ON STEAMOwn and trade adorable slimes, each lovingly drawn by hand, through your Steam Inventory. Move eligible high-grade slimes and runes to your Steam Inventory and trade supported items with other players.…

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Slime Trader artwork
Slime TraderSteam · Game · Available
From the community

Slime Trader reviews & player comments

Store ratings and available player reviews. Review snapshots show their last refresh date.

★ 4.8/10Steam · 140 ratings
SteamLast checked November 3, 2026

Most helpful8

Recommended
Super fun little dopamine drip game that you can leave running in the background collecting resources. You can also get some cheap runes on the…
Recommended
Amazing game, absolutely love it! My only suggestion would be to add a way to speed up progression while actively playing, maybe through a tapping…
Recommended
A charming and addictive merge-defense game: summon slimes, combine identical ones to create more powerful versions, and fend off waves of enemies. It features a…
Not recommended
Being honest its pretty crap. I mean it is a game and tbh its definitely vibe coded. Most reviews all complain about bad rng and…
Recommended
I don't play idle games on PC usually, but this was a surprisingly good pass-time.
Recommended
I genuinely don't understand why they don't just let us summon an A Slime directly for 4B coins. Instead, we have to summon four C…

Most recent8

Recommended
A charming and addictive merge-defense game: summon slimes, combine identical ones to create more powerful versions, and fend off waves of enemies. It features a…
Recommended
Super fun little dopamine drip game that you can leave running in the background collecting resources. You can also get some cheap runes on the…
Recommended
Amazing game, absolutely love it! My only suggestion would be to add a way to speed up progression while actively playing, maybe through a tapping…
Recommended
I don't play idle games on PC usually, but this was a surprisingly good pass-time.
Not recommended
Being honest its pretty crap. I mean it is a game and tbh its definitely vibe coded. Most reviews all complain about bad rng and…
Recommended
I genuinely don't understand why they don't just let us summon an A Slime directly for 4B coins. Instead, we have to summon four C…

Short excerpts linked to their source. The score above uses aggregate storefront ratings—not these few comments.