Comparison

Deep Dig vs Crystal Cavern Idle Mine

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

Deep Dig

Read full description

Deep Dig is an idle mining game built around one addictive question: will THIS tap be the big one? TAP TO DIG Smash through rock with every tap. Land a critical hit and a lamp lights up โ€” one more tap, and you break into a high-odds chain zone where crits can keep coming, tap after tap after tap. UPGRADE YOUR RIG Pour coins into Drill Power and Auto-Driller to dig faster, even while you are away. CORE UPGRADES + NEW GAME+ Reach the planet's core and earn permanent Cores, then start a fresh run with your upgrades carried over. Stack enough Cores across runs and your rig only gets stronger. PLAY IN YOUR LANGUAGE Fully translated into English, Japanese, Chinese, Spanish, Portuguese, and Korean. This release covers Stage 1 โ€” dig from the surface all the way down to 500m. Deeper stages, new ore, and more content are already in the works. Free to play, no purchase required. Optional video ads offer bonuses like stamina refills and coin boosts, entirely up to you. Start tapping. See how deep you can go.

About

Crystal Cavern Idle Mine

Read full description

Crystal Cavern is an idle game with no sound at all. Tap the crystal in the middle of the screen and you earn crystals. That is the whole basic move. Spend them on buildings and the cave keeps earning every second, even while the app is closed. You can collect up to eight hours of it when you come back. โ–  No sound No music, no effects. If you cannot hear, or you are somewhere you cannot make noise, nothing is lost. Haptics are there instead. โ–  You choose what reads well Four text sizes. Five colour schemes, two of them maximum contrast โ€” white on black and black on white. โ–  Twelve seams As you dig, the seam changes and the crystal shifts colour and shape. You start at Quartz; twelve layers lie below. Each rebirth opens a deeper one. โ–  Rebirth Melt everything down into cores. Each core adds +2% to your tap value and income, permanently. The deeper you dig, the more cores are left behind. โ–  Glowing orbs Now and then an orb drifts across the screen. Tap it before it fades for a bonus. The best one multiplies everything by five for thirty seconds. โ–  Built to be easy to use - Playable from a keyboard - Respects the reduce-motion setting - Progress saves itself on this device - A save code moves your progress to another device - Pause whenever you like; nothing accumulates while paused About adverts: a short video plays only when you claim a bonus. The game is fully playable without watching one. No advert is ever required to progress. Languages: 17 (English, Japanese, Chinese Simplified and Traditional, Korean, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Turkish, Vietnamese, Thai, Indonesian), shown automatically in your iPhone's language.

Screenshots

Deep Dig3 screens
Crystal Cavern Idle Mine4 screens

Verdict

The call

The clearest difference is update cadence: Deep Dig at every 2 days against Crystal Cavern Idle Mine's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Deep Dig ships an update every 2 days, Crystal Cavern Idle Mine every 6 days. The most recent releases landed on October 9, 2026 and October 21, 2026 respectively.

Scorecard1 real difference ยท 5 level
Deep Dig versus Crystal Cavern Idle Mine: the parameters behind the verdict, then further details
ParameterDeep DigCrystal Cavern Idle Mine
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 6 days
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better16.0
Further details โ€” not scored
Size35 MB5 MB
Age rating4+4+
DeveloperAtsushi ItoYoshihiko Okano

In-app purchases

None

Deep Dig

No in-app purchases

None

Crystal Cavern Idle Mine

No in-app purchases

Questions

Is Deep Dig free?
Deep Dig is free to download, with no in-app purchases.
Is Crystal Cavern Idle Mine free?
Crystal Cavern Idle Mine is free to download, with no in-app purchases.
Do Deep Dig or Crystal Cavern Idle Mine have ads?
Both Deep Dig and Crystal Cavern Idle Mine show ads.
Which is updated more often, Deep Dig or Crystal Cavern Idle Mine?
Deep Dig ships an update every 2 days, and Crystal Cavern Idle Mine every 6 days. Most recently, Deep Dig was updated on October 9, 2026 and Crystal Cavern Idle Mine on October 21, 2026.

Other comparisons