Strategy

The one rule worth knowing

When in doubt, buy whichever building has the lowest price divided by income gained. That number is how many seconds the purchase takes to pay for itself.

Glowing Moss at 20 crystals for 0.3 per second pays back in about 67 seconds. Little Drill at 180 for 1.8 per second takes 100. At that moment, moss is the better buy.

Because each copy costs more than the last, the number gets worse as you buy. Sooner or later the next building overtakes it. That is when you switch.

Mind the doubling

Every ten copies doubles a building's output, which bends the arithmetic above.

The tenth copy of a building you own nine of is worth roughly eleven copies, because buying it doubles the lot. If the bar is one or two short, it is usually right to finish it even at an unfavourable price.

Buying with ×MAX can overshoot straight past that point. When a doubling is close, step through the last few with ×1.

Early game (up to 10,000)

This is the part where tapping matters. Buy Sharpen the Pick a few times early; a bigger tap noticeably shortens the wait for your first buildings.

For buildings, ten Glowing Moss then ten Little Drill is a clean opening. Ten moss is 6 per second, twenty is 12.

Resonance Gloves appear at 6,000 all time. There is no hurry. Three percent of a small income is a small number. They become strong once you are past about 100 per second.

Mid game (10,000 to 1,000,000)

Tapping fades and the buildings take over. This is the stretch where a game like this can drag, so lean on ×10 and ×MAX — they exist to take the clicking out of it.

When a new building becomes affordable, buy one and watch the per-second figure. The row shows you exactly what it added, which makes the comparison with what you already own easy.

In this stretch, filling a cheap building to its next doubling often beats one copy of an expensive one. Twenty Bat Porters make 44 per second — close to a single Ley Pump's 62, for far less money.

When to rebirth

Rebirth unlocks at one million all time. Cores scale with the square root of your total, which means quadrupling your total only doubles your cores.

What that table says is that grinding gets worse the longer you do it. A hundred million earns 80 cores; grinding ten times as long for a billion earns 252 — barely three times as many.

The practical rule is rebirth when progress visibly slows. If the next seam looks like hours away, that is the moment. The next run, with the multiplier behind it, covers the same ground far faster.

Using resonance well

Crystal Resonance multiplies everything by five for thirty seconds. Its value is proportional to your per-second income, which means there is no point frantically tapping through it — the multiplier is already doing its work on your buildings. Leave it alone.

Unless you have Resonance Gloves, that is: they put 3% of your (already quintupled) income into every tap. With the gloves grown, those thirty seconds are worth tapping through.

Making use of being away

Time away earns at half speed and caps at eight hours. The most efficient way to play is therefore to set your buildings up before bed and collect in the morning.

Anything past eight hours is lost, so on a longer break it is worth opening once inside that window. That said, the game progresses fine if you never think about this at all.

Reading the numbers

Numbers are shown at full length — "1,256", "600,000,000" — with separators and nothing else. No K, M or B, and no 万 or 億 either.

Abbreviations are shorter, but every one of them asks the reader to know a convention. "1万" is instant for a Japanese reader and meaningless to an English one; "10K" is the reverse. The digits themselves mean the same thing in every language, so the abbreviations were dropped.

Only the separator follows the language: English and Japanese write 1,234,567 while Spanish writes 1.234.567. That is each language's own convention for the same number.

Longer numbers need more room, so the large figures on screen shrink as the digits pile up, and prices and per-second figures wrap rather than push the layout sideways. Nothing runs off the screen at any length.

There is no ceiling. Counting stays exact to 9,007,199,254,740,991 and continues past that. Depth has no ceiling either: once you reach the deepest seam it keeps creeping down by 4,000 metres for every tenfold increase in your total.