The physics-based merge game sobosuba, developed and published by keepeetron on Steam, features 30 distinct achievements. Every unlocked achievement awards a unique color style for customizing your game. While some achievements track straightforward numerical growth up to an 8192 blob, others demand deliberate stack manipulation, midair combinations, and precise target scores.
Complete List of All 30 Sobosuba Achievements
The game groups its 30 achievements around core mechanics: float bar placement, midair merges, unbroken merge chains, clean stacks, holding identical multiples, capped merging, and exact game-over totals.
| Achievement Name | Official In-Game Condition | Category |
|---|---|---|
| bar 64 | Have a 64 Sobo on the float bar. | Float Bar |
| bar 128 | Have a 128 Sobo on the float bar. | Float Bar |
| bar 256 | Have a 256 Sobo on the float bar. | Float Bar |
| bar 512 | Have a 512 Sobo on the float bar. | Float Bar |
| air merge 32 | Merge into a 32 Sobo without it touching anything for a quarter second. | Air Merge |
| air merge 64 | Merge into a 64 Sobo without it touching anything for a quarter second. | Air Merge |
| air merge 128 | Merge into a 128 Sobo without it touching anything for a quarter second. | Air Merge |
| air merge 256 | Merge into a 256 Sobo without it touching anything for a quarter second. | Air Merge |
| chain from 1 to 16 | Have a lineage of sobos merging from 1 to 16 without interruption. | Chain |
| chain from 1 to 128 | Have a lineage of sobos merging from 1 to 128 without interruption. | Chain |
| chain from 1 to 512 | Have a lineage of sobos merging from 1 to 512 without interruption. | Chain |
| chain from 32 to 1024 | Have a lineage of sobos merging from 32 to 1024 without interruption. | Chain |
| chain from 128 to 2048 | Have a lineage of sobos merging from 128 to 2048 without interruption. | Chain |
| chain from 512 to 4096 | Have a lineage of sobos merging from 512 to 4096 without interruption. | Chain |
| clean 512 | Have a lone 512 Sobo in the stack. | Clean Stack |
| clean 1024 | Have a lone 1024 Sobo in the stack. | Clean Stack |
| clean 2048 | Have a lone 2048 Sobo in the stack. | Clean Stack |
| clean 4096 | Have a lone 4096 Sobo in the stack. | Clean Stack |
| 8192 | Have an 8192 Sobo. | Progression |
| 121212 | Without merging any sobo above 2, have 6 Sobos in the stack for 10 seconds without interruption. | Merge Cap |
| 1212121212 | Without merging any sobo above 2, have 10 Sobos in the stack for 10 seconds without interruption. | Merge Cap |
| 6x 128 | Have 6x 128 Sobos for 10 seconds. | Multiples |
| 5x 256 | Have 5x 256 Sobos for 10 seconds. | Multiples |
| 4x 512 | Have 4x 512 Sobos for 10 seconds. | Multiples |
| 3X 1024 | Have 3x 1024 Sobos for 10 seconds. | Multiples |
| praise the suncle | Get a safety-spawn with both spawners blocked. | Safety Spawn |
| score 0 | Finish a game with a score of exactly 0. | Exact Score |
| score 10 | Finish a game with a score of exactly 10. | Exact Score |
| score 100 | Finish a game with a score of exactly 100. | Exact Score |
| score 1000 | Finish a game with a score of exactly 1000. | Exact Score |
Float Bar and Air Merge Mechanics
The upper float bar is an active physical environment rather than a passive piece preview. Sobos sitting on the bar squish, flatten, and interact. When matching values touch on the bar, they can merge directly before you launch them into the main playfield.
To complete the float bar milestones (bar 64, 128, 256, and 512), you must have that specific value resting on the float bar. You can build these values either by merging pieces directly along the float bar or when rising stack bounces touch the bar from below. Note that spawning relies on directional checks toward the bar: clearing space on one side can cause multiple new Sobos to spawn on the other.
Air merge achievements require merging two matching pieces midair, with the resulting Sobo touching nothing else for at least a quarter of a second (0.25 seconds). Developer patch updates separated air merges from bar merges, meaning neither of the colliding pieces can be resting on the float bar to register. Newly merged blobs flash briefly and carry a short protection delay where they cannot merge again; larger blobs remain protected slightly longer because the delay scales with their area.
Clean Stacks, Multiples, and Merge Caps
Several achievements require playing counter to normal merge instincts by withholding combinations or isolating pieces.
- Clean Stacks: The clean achievements (clean 512, 1024, 2048, and 4096) require having only a single, lone Sobo of that size in the stack, with no other pieces present below the float bar. An early launch bug where clean achievements failed to register was resolved in update 1.2.3.
- Merge Caps (121212 and 1212121212): These achievements require keeping 6 or 10 Sobos in the stack for 10 consecutive seconds without ever merging any piece past the value of 2. You must drop pieces softly into separated positions to prevent matching 2s from colliding into 4s.
- Multiples Endurance: Achievements like 6x 128, 5x 256, 4x 512, and 3X 1024 require maintaining that exact count of matching pieces simultaneously for 10 seconds. If two of your matching target pieces touch and combine, your count drops, resetting the challenge timer.
Since update 1.2, launching a piece adds velocity to its existing float-bar motion rather than resetting it. You can also utilize center cancelling—pulling your aiming arrow back to the center of a low-velocity Sobo—to abort an intended shot and avoid accidental collisions.
Exact Scores and Praise the Suncle
Exact score achievements (score 0, 10, 100, and 1000) trigger only when a run ends with your final score matching the target number exactly.
Scoring in sobosuba is determined by the combined value of eligible blobs currently on screen. Newly spawned blobs have faded numbers and do not contribute to your score until they take part in a merge. Once a blob is counted, combining it with another already counted blob reduces total screen clutter but does not award its point value a second time.
To achieve score 0, you must trigger a game over before any valid merge occurs. Community players accomplish this by launching initial unmerged blobs rapidly toward the upper bumper boundaries to trigger the failure threshold with zero scored points.
The hidden challenge "praise the suncle" revolves around the game's anti-softlock design. When the stack rises high enough to physically block both spawners and no pieces remain on the float bar to drop, you cannot take an action. Under these conditions, the engine triggers an automatic safety-spawn after a brief delay. Triggering this safety-spawn without causing a full game-over state awards the achievement.
Frequently Asked Questions
Do sobosuba achievements unlock in-game rewards?
Yes. Every unlocked Steam achievement grants a corresponding color style that can be selected in the game's settings.
Can you save or resume progress during an achievement run?
Yes. A developer update allows players to close the game and resume an ongoing session upon reopening. This feature acts as session continuity rather than a manual save-state system, preventing players from rewinding mistakes during high-score or achievement attempts.
How do you cancel an aimed launch in sobosuba?
Starting with version 1.2, you can perform a center cancel. Drag the aiming arrow past the activation threshold, then pull it back toward the center of the Sobo while the piece has low velocity to cancel the launch without firing.
