Glass Ceilings are powerful boosts in the game Sandcastle Builder.[1] There are 12 Glass Ceilings, one for each type of tool. They have multiple uses. They boost castle production in the midgame and they control the tool factory in the endgame. There is a difficult algorithm to get the ceilings, although there is a much simpler algorithm to acquire them that is less error-prone. Getting all 12 ceilings costs a lot of glass blocks.
If you have the glass ceiling of some tool, its production is multiplied by 33Glass Ceilings owned. By buying Window Washing Beanies at the cost of (444+77*current level) scaffolds, you'll boost the multiplier. The total multiplier is then equal to (0.103125*scaffolds*2level)Glass Ceilings owned.
Glass Ceiling 0 is unlocked by the DoRD when you have Free Advice. When you own Glass Ceiling N, but none of the lower Glass Ceilings, you unlock Glass Ceiling N+1. You can lock Glass Ceilings with a button on the boost, but to lock Glass Ceiling N, you need to own Glass Ceiling N-1, but none of the lower Glass Ceilings.
If you have the Tool Factory, locking Glass Ceilings will prevent a tool from being produced, giving a boost to the cheapest next tools. For example, if only Ceilings 0 and 1 are locked, up to 2 Cuegans, 2 Trebuchets, and 1 of all other tools except for Buckets and NewPixBots per mNP, and if only Ceiling 11 is unlocked, up to 12 Beanie Builders will be produced per mNP, assuming Production Control is locked.
Costs[]
The first 10 Glass Ceilings are unlocked by the algorithm. Glass Ceiling N costs, without any discounts, 6000*1000N castles, 6000*1000N sand and 60*(N+1) glass blocks.
We define B(N) as the cost to build all Glass Ceilings up to Glass Ceiling N, and D(N) as the cost to destroy all Glass Ceilings up to Glass Ceiling N. We then have the following initial costs, assuming you have Family Discount:
- B(0) = 10. Glass Ceiling 0 costs 10 glass blocks.
- B(1) = 30. Glass Ceiling 1 costs 20 glass blocks and Glass Ceiling 0 costs 10 glass blocks.
- D(0) = 0. You can always destroy Glass Ceiling 0.
- D(1) = 0. If you have Glass Ceiling 0, you can destroy Glass Ceiling 1 and then Glass Ceiling 0.
Further, to get all Glass Ceilings up to Glass Ceiling N, you need to do the following:
- Build all ceilings up to N-1. (Cost: B(N-1))
- Destroy all ceilings up to N-2. (Cost: D(N-2))
- Build Glass Ceiling N. (Cost: 10(N+1))
- Build all ceilings up to N-2. (Cost: B(N-2))
To destroy all Glass Ceilings up to Glass Ceiling N, you need to do the following:
- Destroy all ceilings up to N-2. (Cost: D(N-2))
- Destroy Glass Ceiling N. (Cost: 0)
- Build all ceilings up to N-2. (Cost: B(N-2))
- Destroy all ceilings up to N-1. (Cost: D(N-1))
The following table with the cost in glass blocks can be made, assuming that Family Discount is owned. The sand and castle costs are generally not too high.
| Glass Ceiling | Tool Boosted | B(N) | B(N)-B(N-1) | D(N) | cost
(price may change but order of magnitude generally wont) |
|---|---|---|---|---|---|
| 0 | Bucket | 10 | 0 | 0 | k GB:50 |
| 1 | NewPixBot | 30 | 20 | 0 | m, GB:100 |
| 2 | Cuegan | 70 | 40 | 10 | M, GB:150 |
| 3 | Trebuchet | 140 | 70 | 40 | t, GB:200 |
| 4 | Flag | 270 | 130 | 120 | p, GB:250 |
| 5 | Scaffold | 510 | 240 | 300 | E, GB:300 |
| 6 | Ladder | 970 | 460 | 690 | Z, GB:350 |
| 7 | Wave | 1860 | 890 | 1500 | y, GB:400 |
| 8 | Bag | 3610 | 1750 | 3160 | v GB:450 |
| 9 | River | 7070 | 3460 | 6520 | S:, C:, GB:500 |
Note that if you already have Glass Ceiling N-1 and all Glass Ceilings below, you don't need to buy them again. So to see the costs between each Glass Ceiling, you should use the fourth column. If you use ASHF and you make no mistakes, Glass Ceiling 0 to 9 can be bought all for 2828 glass blocks. Glass Ceiling 10 is unlocked at logic 80 and costs 6FQ sand, 6FQ castles and 100K glass blocks if no discounts are used. Glass Ceiling 11 is unlocked at logic 90 and costs 6WQ sand, 6WQ castles and 350K glass blocks if no discounts are used.
Tips[]
When attempting to unlock a new ceiling a helpful tip to remember is that in order to lock a ceiling you must start with the matching even or odd ceiling. For example if you want to unlock ceiling 6 that mean you need to lock ceiling 4 and under. Since 4 is even you would start by locking ceiling 0. The sequence would be as follows:
- lock 0 followed by 2
- buy 0
- lock 1, 0, and 4 in that order
- buy 0 then 1
- lock 0
- buy 2 then 0
- lock 1, 0, and 3
- buy 0 then 1
- lock 0 then 2
- buy 0
- lock 1 then 0
- Finally you are left with only 5 allowing you to purchase 6.
You can then buy back all you ceiling and start again. To unlock the next ceiling 7 you goal would be to lock 5 and under so you would start the sequence by locking the odds, so you start with locking 1 and building from there.
If you own an even number of ceilings, then toggle ceiling 0, otherwise, toggle the nonzero ceiling. This works because there is only one ceiling other than 0 that can be toggled (except when none of the ceilings are built). If you own ceiling N but not N-1 and below, then you can toggle ceiling N+1 but ceiling N prevents all higher ceilings from being toggled. Disregard the tips above; they're too confusing.
| Step | Ceiling toggled | Ceilings unlocked | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
| 0 | |||||||||||
| 1 | 0 | Yes | |||||||||
| 2 | 1 | Yes | Yes | ||||||||
| 3 | 0 | Yes | |||||||||
| 4 | 2 | Yes | Yes | ||||||||
| 5 | 0 | Yes | Yes | Yes | |||||||
| 6 | 1 | Yes | Yes | ||||||||
| 7 | 0 | Yes | |||||||||
| 8 | 3 | Yes | Yes | ||||||||
| 9 | 0 | Yes | Yes | Yes | |||||||
| 10 | 1 | Yes | Yes | Yes | Yes | ||||||
| 11 | 0 | Yes | Yes | Yes | |||||||
| 12 | 2 | Yes | Yes | ||||||||
| 13 | 0 | Yes | Yes | Yes | |||||||
| 14 | 1 | Yes | Yes | ||||||||
| 15 | 0 | Yes | |||||||||
| 16 | 4 | Yes | Yes | ||||||||
| 17 | 0 | Yes | Yes | Yes | |||||||
| 18 | 1 | Yes | Yes | Yes | Yes | ||||||
| 19 | 0 | Yes | Yes | Yes | |||||||
| 20 | 2 | Yes | Yes | Yes | Yes | ||||||
| 21 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 22 | 1 | Yes | Yes | Yes | Yes | ||||||
| 23 | 0 | Yes | Yes | Yes | |||||||
| 24 | 3 | Yes | Yes | ||||||||
| 25 | 0 | Yes | Yes | Yes | |||||||
| 26 | 1 | Yes | Yes | Yes | Yes | ||||||
| 27 | 0 | Yes | Yes | Yes | |||||||
| 28 | 2 | Yes | Yes | ||||||||
| 29 | 0 | Yes | Yes | Yes | |||||||
| 30 | 1 | Yes | Yes | ||||||||
| 31 | 0 | Yes | |||||||||
| 32 | 5 | Yes | Yes | ||||||||
| 33 | 0 | Yes | Yes | Yes | |||||||
| 34 | 1 | Yes | Yes | Yes | Yes | ||||||
| 35 | 0 | Yes | Yes | Yes | |||||||
| 36 | 2 | Yes | Yes | Yes | Yes | ||||||
| 37 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 38 | 1 | Yes | Yes | Yes | Yes | ||||||
| 39 | 0 | Yes | Yes | Yes | |||||||
| 40 | 3 | Yes | Yes | Yes | Yes | ||||||
| 41 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 42 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 43 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 44 | 2 | Yes | Yes | Yes | Yes | ||||||
| 45 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 46 | 1 | Yes | Yes | Yes | Yes | ||||||
| 47 | 0 | Yes | Yes | Yes | |||||||
| 48 | 4 | Yes | Yes | ||||||||
| 49 | 0 | Yes | Yes | Yes | |||||||
| 50 | 1 | Yes | Yes | Yes | Yes | ||||||
| 51 | 0 | Yes | Yes | Yes | |||||||
| 52 | 2 | Yes | Yes | Yes | Yes | ||||||
| 53 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 54 | 1 | Yes | Yes | Yes | Yes | ||||||
| 55 | 0 | Yes | Yes | Yes | |||||||
| 56 | 3 | Yes | Yes | ||||||||
| 57 | 0 | Yes | Yes | Yes | |||||||
| 58 | 1 | Yes | Yes | Yes | Yes | ||||||
| 59 | 0 | Yes | Yes | Yes | |||||||
| 60 | 2 | Yes | Yes | ||||||||
| 61 | 0 | Yes | Yes | Yes | |||||||
| 62 | 1 | Yes | Yes | ||||||||
| 63 | 0 | Yes | |||||||||
| 64 | 6 | Yes | Yes | ||||||||
| 65 | 0 | Yes | Yes | Yes | |||||||
| 66 | 1 | Yes | Yes | Yes | Yes | ||||||
| 67 | 0 | Yes | Yes | Yes | |||||||
| 68 | 2 | Yes | Yes | Yes | Yes | ||||||
| 69 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 70 | 1 | Yes | Yes | Yes | Yes | ||||||
| 71 | 0 | Yes | Yes | Yes | |||||||
| 72 | 3 | Yes | Yes | Yes | Yes | ||||||
| 73 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 74 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 75 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 76 | 2 | Yes | Yes | Yes | Yes | ||||||
| 77 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 78 | 1 | Yes | Yes | Yes | Yes | ||||||
| 79 | 0 | Yes | Yes | Yes | |||||||
| 80 | 4 | Yes | Yes | Yes | Yes | ||||||
| 81 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 82 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 83 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 84 | 2 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 85 | 0 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||
| 86 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 87 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 88 | 3 | Yes | Yes | Yes | Yes | ||||||
| 89 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 90 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 91 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 92 | 2 | Yes | Yes | Yes | Yes | ||||||
| 93 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 94 | 1 | Yes | Yes | Yes | Yes | ||||||
| 95 | 0 | Yes | Yes | Yes | |||||||
| 96 | 5 | Yes | Yes | ||||||||
| 97 | 0 | Yes | Yes | Yes | |||||||
| 98 | 1 | Yes | Yes | Yes | Yes | ||||||
| 99 | 0 | Yes | Yes | Yes | |||||||
| 100 | 2 | Yes | Yes | Yes | Yes | ||||||
| 101 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 102 | 1 | Yes | Yes | Yes | Yes | ||||||
| 103 | 0 | Yes | Yes | Yes | |||||||
| 104 | 3 | Yes | Yes | Yes | Yes | ||||||
| 105 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 106 | 1 | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| 107 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 108 | 2 | Yes | Yes | Yes | Yes | ||||||
| 109 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 110 | 1 | Yes | Yes | Yes | Yes | ||||||
| 111 | 0 | Yes | Yes | Yes | |||||||
| 112 | 4 | Yes | Yes | ||||||||
| 113 | 0 | Yes | Yes | Yes | |||||||
| 114 | 1 | Yes | Yes | Yes | Yes | ||||||
| 115 | 0 | Yes | Yes | Yes | |||||||
| 116 | 2 | Yes | Yes | Yes | Yes | ||||||
| 117 | 0 | Yes | Yes | Yes | Yes | Yes | |||||
| 118 | 1 | Yes | Yes | Yes | Yes | ||||||
| 119 | 0 | Yes | Yes | Yes | |||||||
| 120 | 3 | Yes | Yes | ||||||||
| 121 | 0 | Yes | Yes | Yes | |||||||
| 122 | 1 | Yes | Yes | Yes | Yes | ||||||
| 123 | 0 | Yes | Yes | Yes | |||||||
| 124 | 2 | Yes | Yes | ||||||||
| 125 | 0 | Yes | Yes | Yes | |||||||
| 126 | 1 | Yes | Yes | ||||||||
| 127 | 0 | Yes | |||||||||
Badges[]
- Ceiling Broken is given when the first 10 glass ceilings are owned. This means that you don't have to go through the ceiling puzzle again when molpiying down or when locking Ceilings for the Tool Factory.
- Ceiling Disintegrated is given when all 12 glass ceilings are owned. This means that you can unlock Ceiling 10&11 with the DoRD instead of a logicat reward.