Name & Purpose The Blob is a growing-chain tag game where the tag team expands with every catch. When the Blob gets big enough, it splits into smaller, faster hunting groups. The last free player starts the next round β nobody is eliminated from the game entirely.
a.k.a. Amoeba Tag, Chain Tag, Growing Blob Tag
Age Band / Group Size / Time / Space Ages 8β16 | 12β40 players | 10β20 min | Large outdoor field or gym
Materials
- 4β8 boundary cones
- Optional: 1β2 coloured pinnies for the starting Blob player(s)
Quick-Run Card One player starts as the Blob. They chase and tag. Tagged players join the Blob by holding hands β the chain grows. At 6 players, the Blob can split into two groups of 3. At any point after that, any group of 3 or more can split into groups of 3. Each group of 3 chases independently. Last free player wins the round and starts as the Blob in round 2.
Setup & Boundaries Mark a large playing area. Free players spread out inside. Blob starts in the centre. Walk the boundary so everyone knows the edges. Remind players: the Blob cannot break β if hands separate, that section stops until reconnected.
How to Play
- One player starts as the Blob. Call “Go!”
- The Blob chases and tags free players. Only the outermost hands of the Blob can tag.
- Tagged players join the Blob at the nearest end β hold hands and keep moving.
- When the Blob reaches 6 players, it may split into two groups of 3. The split is voluntary β the Blob chooses when.
- After splitting, each group of 3 chases independently. They can tag with any free hand.
- Groups of 3 can absorb a tagged player (becoming 4) and then split again: one group of 3 and one player who becomes a new Blob group’s seed.
- Last free player wins the round. That player starts as the Blob in round 2.
- If the game stalls (last 2β3 players evade for a long time), shrink the boundary slightly.
I-OPt Roles All three active simultaneously:
- Navigator (Searcher): Calls out direction and target for their Blob group, spots isolated free players, plans routes.
- Anchor (Performer): Runs hard at the outer end of the chain, reaches to make tags, holds pace for the group.
- Connector (Relater): Holds the middle of the chain, keeps hands connected, communicates when the chain is stretching too far.
Inclusion Supports
- Players with mobility differences join the Blob as interior links β they set the pace and direct strategy, a genuinely influential role.
- Players who prefer not to hold hands can link via wrist straps or pinkie-to-pinkie.
- Shorter boundary for groups with mixed mobility.
- Last free player re-enters as Blob β never truly eliminated.
Stewardship Collect cones together as one big Blob β walk them in as a chain. 30-second reflection: “When the Blob split into smaller groups, what changed? How does a team change when it gets smaller or larger?”
Consent Pre-brief: “Holding hands in the Blob is the mechanic β if you prefer wrist-to-wrist or linking pinkies instead, that works. Tags are hand-touch only, below the shoulder. Signal me anytime if something feels off.” Mid-game check-in: After the first split, counsellor pauses briefly: “Blob groups β comfortable with pace? Free players β okay?” Opt-out/re-entry: Players step to the boundary edge. They re-enter as a free runner at the start of the next round.
Risks & Mitigation
| Risk | Likelihood | Mitigation |
|---|---|---|
| Blob chain drags or jerks a player | High | Remind: Blob moves at the speed of its slowest member |
| Players trip during a fast Blob chase | Medium | Remind: Blob jogs, does not sprint; free players have the speed advantage |
| Blob group loses hands during a tag attempt | Low | Pause, reconnect, resume β no penalty |
| Last free player stalls game | Low | Shrink boundary after 90 seconds of untagged play |
Warm-Up Suggestions
- “Chain Walk”: whole group links hands and navigates between cones β builds Blob movement skills.
- “Squeeze Signal”: in the chain, send a hand-squeeze from one end to the other as fast as possible.
Debrief What? “What changed about how the Blob moved after it split into groups of 3?” So what? “Which was more effective β one big blob or several small groups? Why?” Now what? “Think of a large team project β is there a moment when splitting into smaller groups would help you move faster?”
Cleanup & Reset Collect cones and pinnies. Reset under 2 minutes.
Notes With very large groups (30+), start with 2 Blob players instead of 1. The split rule (groups of 3 only) is important β enforce it. Groups of 2 are too easy to tag with; groups of 4 are too slow. The “3” constraint drives interesting tactical decisions.
