Slumber Realm Preview

Slumber Realm is one of the more unique-looking roguelike deck-builders I’ve recently come across, but the gameplay opts for a more familiar structure to its baseline mechanics. Utilizing a familiar pattern of choosing pathways, fighting battles and getting cards, the game distinguishes itself via a day and night cycle for both its battles and beyond. Players decorate their room and do chores in the real world by day, and enter a dream state where they engage in combat at night.  

Publisher: Chugga Chugga LLC

Developer: Chugga Chugga LLC

Platform: Played on PC (Steam)

Availability: Releasing Q4 2026 on PC

---

For the daytime, this preview build holds very little to do. You buy decorations for your room, which you can place and organize as you see fit, which in turn earn you more points as you progress through the dream world at night. These items, bought from the room’s corkboard, are not always just decorative, however. Some can be beneficial for the dream world, like new abilities or cards to use, but there is little to do in this waking world outside of a few clicks now and again.

On the other hand, the night segments place players on a branching pathway of various encounters against nightmares that take the shape of broccoli, mushroom men, and even the sun. This dream world has some other oddities, like a shopkeeper that eats the equipment you want to buy, and an almost watercolor-esque aesthetic to the environments and figures that appear onscreen.

It’s a structure that will feel very familiar to genre enthusiasts, as it does somewhat mimic the heavy-hitters of the genre, but the slumber realm does a few things mechanically to separate itself, at least a little bit. First, that aforementioned day-night cycle is key to the battles. Players have cards in their deck that work at specific times of day. While many cards can take effect at any time, the most powerful tools are often those that need specific times of day to work.

Chugga Chugga LLC

---

Each card has a number range that dice rolls must fall within to activate, as well. If a card shows 1-4 but you roll a 5, the card will not activate. Additionally, cards confer resources when activated, signified by the color and symbol in the bottom left of each card. This means players must consider not only which time of day their cards are most effective in, but also calculate the resources needed to make the best use of their abilities, and the die ranges needed for activation.

A card with ranges 1-3, 4-6, and 3-5 would be impossible to activate all at once under base conditions, but there are ways to empower your cards to align them more easily. Forging a card increases the top-end value of a card’s activation range, and there are aspects you can unlock that provide the ability to manipulate die rolls by rolling additional dice and taking the lower or higher result (depending upon which specific ability you use). Those are special abilities that take the aforementioned resources to activate, so there is a resource management aspect to all of this as well. 

But if you’re worried about this all seeming overwhelming, I wouldn’t fret. The actual battles are quite simple, and after a few runs to get your feet settled, it lands safely on the breezier end of the genre. The preview build only let us run through a few battles at a time before forcing players into an “awake” state, something that may not be changed at full release, and the card pool, enemy variety, and decorative aspects are quite limited (the full game will have more of those, at least), so while I am not deeply satisfied by what exists now, it does have some promise as a lighter take on one of the more saturated genres out there.