🫀 Bonus game
Bonus game
Organs are falling. Stack them neatly, fill whole rows and send each patient home. It gets faster every level, and every level brings a new organ fact.
← → move · ↑ / X rotate · Z rotate back · ↓ soft drop · Space hard drop · C hold · P pause
How it works
- Organs fall into the 10 × 20 board. Move and rotate them as they fall.
- Fill a whole row and it clears. Four rows at once is a transplant, worth the most.
- Hold tucks an organ away for later (once per drop). The faint outline shows where it will land.
- Combos: clear rows on back-to-back drops for a code blue combo bonus. A cleared row made of one organ type is a perfect match, like a matched donor: triple points.
- Every 10 rows: level up, faster drops and a new organ fact.
- Sound: soft monitor beeps (and a buzz on phones). Tap 🔊 in the game bar to mute.
- Daily challenge: everyone gets the same organs in the same order (new each midnight, Sydney time). Your first go each day is scored; replays are practice.
- On a phone, use the buttons under the board, or swipe the board: drag to move, tap to rotate, flick down to drop.
The organs
High scores
Top 5 on this device.
No organs were harmed. All patients went home.
← → move · ↑ X rotate · Z back · ↓ soft · Space drop · C hold · P pause
How to play
- Fill a whole row to clear it. Four at once = transplant.
- Combos: clear rows on back-to-back drops for a code blue bonus. A cleared row all of one organ is a perfect match: triple points.
- Buttons: ◀ ▶ move, ↻ rotate, ▼ soft drop, ⤓ hard drop, ⇄ hold.
- Swipe the board: drag to move, tap to rotate, flick down to drop.
- Keys: ← → move, ↑ or X rotate, Z rotate back, ↓ soft drop, Space hard drop, C hold, P pause.
- Every 10 rows: level up, faster drops, new organ fact.
About Stackulus
Stackulus is a free falling-block arcade game where the blocks are organs. Move and rotate them as they fall, fill whole rows to clear them, and send each patient home. It speeds up every level, and every level brings a light organ fact. The daily challenge gives everyone the same organs in the same order.
How to play
- Move and rotate each organ as it falls.
- Fill a whole row to clear it. Four rows at once is a transplant.
- Hold tucks an organ away for later.
- Your first daily challenge go each day is scored for the world board.
Who it’s for
Anyone who likes classic falling-block games, from students on a break to clinicians on a night shift.
Common questions
Is Stackulus free?
Yes. It's free to play in your browser, with no sign-up, no download and no ads.
Can I play on my phone?
Yes. Use the buttons under the board, or swipe: drag to move, tap to rotate, flick down to drop.
What's the daily challenge?
Everyone gets the same organs in the same order, new each day at midnight, Sydney time. Your first go counts.
Try next: Mergeon (free organ merge game) · Basil + Clover (free cat arcade game) · Sudokrine (medical Sudoku)