Cauldron

Cauldron asks a question most idle games dodge: what if the grind was actually fun? You play Nyx, a young witch dropped into a darkness-covered world with a snarky pink sidekick, and your job is to gather resources by playing minigames, brew those resources into upgrades, and battle deeper into the map. SleepyDad Games shipped it in May 2025 and the Steam audience has kept it at a Very Positive verdict, which is rare air for a game that openly calls itself an upgrade tree with a favourite plant.

What the loop feels like

You pick apples, dig rocks, break crystals, slide across ice, fish. That's Cauldron.

You toss the haul into the cauldron, brew something absurd, and the same minigames start paying out bigger numbers. That's Cauldron.

You recruit a hero, unlock a skill tree, flip on the autobattler, and let the collection box hoover everything while you're gone. That's Cauldron.

The active-to-idle spine

The structure that makes it click is the active-to-idle loop. You start hands-on: each resource has its own minigame, and your peak performance sets the baseline for Blinky the ghost and the upgradable collection box to auto-gather while you are away. So mastery is never wasted, it converts directly into passive income. Combat runs alongside as a turn-based affair with staff attacks and four elemental types, poison, fire, shock and freeze, where status effects spike in damage or utility every five stacks. Twenty-plus heroes each carry their own skill tree, and eventually an autobattler takes over standard fights entirely. The publisher is Caketown Interactive, and the game leans into letting you choose your own pace, with explicit Idle, Pacifist and EVIL modes for people who want to grind, befriend, or break the game.

Where it stumbles

The complaints are consistent and worth hearing before you buy. The autobattler is the weakest system: fights outside your control can feel superficial, boiling down to preset templates or brute-forced numbers rather than tactical play. Several minigames are openly derivative, including a Vampire Survivors clone that some players feel is a worse version of the thing it imitates. And the price-to-content ratio draws fire, with the community flagging it as expensive relative to typical incremental pricing on Steam. If you are here purely for passive numbers-go-up, this is the wrong game, it wants your hands for longer than most.

Playing it today

On Steam for Windows, single-player, with full controller support and save-anywhere. An iOS listing called Cauldron Today exists but is a different product from a different seller, so do not mistake it for a mobile port. No same-developer mobile version verified at check.

The verdict

One of the few incremental games that respects both kinds of player: the one who wants to actively master systems, and the one who wants to eventually walk away and let the numbers brew themselves. The minigames are better than filler and worse than standalone titles, but the exponential curve behind them is genuinely generous. For another idle game that front-loads hands-on play, Pomofarm is the cozier option, and Incremental Cubes strips the same exponential loop down to pure math for free.