Merge Link looks like a tapping game and scores like a chain planning game. The difference between a mediocre run and a good one is one number the engine tracks quietly, the combo multiplier. Understand the two merge paths below and your score per tap more than doubles.
The two merge paths in the engine
A manual merge happens when you tap one bubble, then tap a second bubble of the same value within 88.4 pixels. The engine checks distance, not touching. Two bubbles can have open space between them and still merge if they sit inside that 88.4 pixel radius, which is 2.6 bubble radii.
A chain merge happens without you. Every frame the engine scans for any two same value bubbles under 88.4 pixels apart and merges one pair per frame. The spawn animation blocks a bubble from chaining until its timer passes 0.8, which takes about a third of a second. After that, any matching neighbor inside the radius folds in automatically.
This has one consequence worth internalizing. Same value bubbles can never rest near each other. The physics pushes them apart on contact, but contact happens at 68 pixels, well inside the 88.4 pixel merge radius. Any pair that drifts together is already a merge waiting to fire.
What a merge pays, exactly
The manual path resets the combo to zero, then the merge increments it to one. Your payout is the new value times one. Merging two 2s by hand pays 4 points. Merging two 64s by hand pays 128.
The chain path does not reset anything. Each chained merge increments the combo again, and each pays new value times the current combo. A worked example using real positions:
1. You tap two 2s. They merge into a 4 at their midpoint and pay 4 times 1, so 4 points.
2. A second 4 sits within 88.4 pixels of that midpoint. The chain fires, creates an 8, and pays 8 times 2, so 16 points.
3. An 8 sits near the new midpoint. The chain fires again, creates a 16, and pays 16 times 3, so 48 points.
The four consumed bubbles, a 2, a 2, a 4, and an 8, hold 16 in face value and paid 68 points, and the multiplier did the heavy lifting. The combo resets the moment a frame passes with no chain found, so a chain is one reaction, never a long term state.
The placement rule that sets up chains
A merged bubble appears at the midpoint between its two parents. You control that midpoint by choosing which pair to merge. Before every manual merge, do the following in order.
1. Find every bubble with the same value as your pair.
2. Estimate the midpoint of the pair you plan to merge.
3. Check whether a third equal bubble sits within roughly 88 pixels of that midpoint.
4. Merge only if it does, or if no chained alternative exists anywhere.
Bubbles drift constantly. The engine applies gentle sine forces of strength 8 and damping of 0.96, so a pair that is 100 pixels apart now can close to chain range within a few seconds. Patience is a mechanic here, within limits set by the spawn clock below.
The clock that ends the game
The board fills on a fixed schedule. One bubble spawns every 2.8 seconds, and the run starts with 8. Values break down as 55 percent 2, 30 percent 4, and 15 percent 8. Spawning needs 74.8 pixels of clearance from every existing bubble and gets 30 attempts to find it, so a crowded board sometimes fails to spawn at all. Filling slows itself down near the cap.
The game ends only when both conditions hold. The board holds 35 alive bubbles, and no same value pair sits within 106.1 pixels of each other. That second threshold is 1.2 times the merge radius, which means a nearly mergeable board counts as alive. The count indicator at the top of the play field turns orange above 21 bubbles and red above 28. Treat red as your deadline for forcing merges.
A practical safety rule follows from the spawn values. Over any six spawns you expect about three 2s, two 4s, and one 8. The 8s are the danger, because they arrive at a value you may not be producing yet. Clear your 8s as soon as a pair exists, before chasing 2 chains.
Honest limits of this strategy
Chain planning depends on spawn positions, and those are random. Some boards offer triple chains on a plate, others force face value merges for minutes. The one merge per frame cap also means very dense chains resolve over several frames, during which a spawn can land in your chain zone and change the arithmetic. The scoring cap on tracked hues at 2048 is cosmetic, but if you build past 2048 the colors stop being a reliable value cue, since the fallback hue is a modulo hash.
Checklist before your next run
1. Tap your first bubble, then scan for a third equal bubble near the pair midpoint before the second tap.
2. Prioritize merging 8s, since they are the rarest spawn and the slowest to pair.
3. Watch the count indicator. Act at orange, treat red as an emergency.
4. Wait one extra second when a drifting pair is closing on chain range.
5. Remember the manual payout is face value. All upside lives in the chain.
6. Press Escape to deselect instead of tapping empty space when you change your plan mid sequence.
What is the longest chain you have triggered, and at what board fill did it happen? Counts near the 35 cap change chain odds in ways a single playthrough cannot reveal, so collected runs are worth comparing. Verify every rule here against the engine by playing at https://webrecast.com/en/merge-link with the source open beside it. If a payout on your screen disagrees with the multiplier math above, send the values and the sequence.
