I don’t have the patience to stop my daily habit of building and evolving monuments. Now that I have kept better track of dates, I open green boxes on those that will be used. This morning, I opened 21 green boxes and got 22 awards: 6 pp, 2 gems, 22 charms (no wine, tonics, or playing cards).
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Ok quick update to my 14 day test:
Disaster! I accidentally clicked collect boxes this morning after 2.5 days. After 3+ years on this site this is a learned habit that I did on autopilot. I collected 323 boxes with 119 wines and 97 gold cards and unknown amount of gems and passes - whoops. So starting again.
I can add one tidbit of insight. I have a total of 98 buildings, the displayed number of boxes appears to top out at the number of buildings you have, my displayed number topped out at 94 after several days with the difference being due to the first 4 party rooms (farmhouse, deco, saloon, chapel) possibly being too low in tier to ever generate a green box.
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You folks have WAY MORE patience than I do!!! LOL
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This is my latest 7-day collection, covering January 19, 2026, to January 26, 2026. For this run, I followed a strict 6-hour coin collection schedule 4 times a day religiously. While the counter showed 216 Prizes, the actual total received was 1,683 rewards:
- 43,098 Party Passes
- 5,916 Gems
- 1,275 Charms
Observations on Variability: I noticed a bit fewer passes and more gems in this haul compared to previous runs. While standard variability is a factor, the addition of the new crown building definitely introduced some extra variables into the data set. It likely impacted the final distribution slightly.
L3 vs. L4 Performance: Looking closely at the video, I also noticed that the L3 Monuments are primarily yielding lower-tier charms, such as Collector’s Coins, because of the 6-hour collection frequency. This suggests that while L4s reach peak quality within 6 hours, L3s are probably being reset too early to produce higher-tier rewards like Holiday Wines.
Refining the Test: Compared to my previous 3-time-daily cycle, this 4-time-daily frequency significantly increased the total haul. To further reduce variables and get the cleanest data possible, I’m currently upgrading all buildings to as many L4 Monuments as I can. I’ll be restarting this test post-HMP to see how a more uniform L4 layout impacts the results. This really drives home the point that the more often you collect your coins, the more opportunities you create for those high-tier green rewards to stack up.
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To put these numbers into perspective, let’s look at the average yield per collection:
- Test 1 (3x daily): 7 days produced 1,029 total rewards, averaging approximately 48.9 rewards per collection.
- Test 2 (4x daily): 7 days produced 1,683 total rewards, averaging approximately 60 rewards per collection.
I’ll be collecting coins again at the next 6-hour mark (about 4 hours from now). If that single collection yields between 50 and 60 rewards, it would suggest the ‘acceleration’ theory; the idea that rewards ramp up specifically after day 5 might be in jeopardy. It could mean the reward volume is simply tied to collection frequency rather than time elapsed.
As mentioned, I’ll be starting a much cleaner test soon with a more uniform city layout to settle this.
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@01-Jet —- With regard to the variation in your testing weeks – Should we take into consideration that the older a building or monument is, it loses value and produces a lower amount of coin? Could this account for the lowered amount of rewards on the 2nd week?
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Hi Ancient Echoes, yes the older a building or monument is, it will produce lower amounts of coins. I create, evolve monuments and buy new buildings every week. I think the lower amount of green boxes is because on collecting coins once a day there will be more coins on each building so the less chance you have of getting a green box on your buildings.
I usually collect my coins 3 times per day, so every time you collect there will be less coins on each building so the more chance of you getting a prize on your building.
On the test i am doing now, i am going to leave my coin collection for the whole week, so i am predicting less green box prizes on my buildings. I will post on Sunday the outcome of this test.
I am only doing this other testing to see what happens and amuse myself while patiently waiting for 2 x the prize day on Sea of Riches LOL !!! 
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Only ‘patience’ I have are patients….
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I am enjoying seeing the results of the different collection strategy.
I plan to continue to watch for more refinements. In the meantime, I am going to work on getting more monuments evolved to the L4.
@Northwoods_Girl I sometimes have no patience for my patients.
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Here are my results from the seven-day test:
Prizes indicated: 764
Prizes yielded: 1,543
Gems: 185
Party Passes: 5631
Surf Board: 11
Blue Tonic: 15
Collector’s coins: 33
Holiday Wine: 12
Gold Playing card: 9
My City is still young with an inventory of 975 buildings that includes seven tier 23, twenty-seven tier 16, twenty-seven tier 15, eighteen tier 14, six-hundred tier 6.
My tbs have been producing well with party passes and gems. I’m currently pondering whether the bounty of party passes is worth delayed gratification.
At this point, I propose that CW hosts a symposium with the developers so that we won’t be compelled to backward engineer the algorithms. In the meantime, I’ll be busy converting my cache of tier 6 to monuments and evolving to greater yields.
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Test Results: 12-Hour vs. 6-Hour Comparison
I recently compared a 12-hour collection directly against a 6-hour collection to test how wait times impact prize frequency.
12-Hour Collection:
- 62 Total Green Prizes
- 407 Gems
- 2,645 Party Passes
- 47 Charms
6-Hour Collection:
- 61 Total Green Prizes
- 99 Gems
- 1,089 Party Passes
- 51 Charms
Analysis: Strategy Comparison Across 4 Tests
Comparing the yield per hit across all four testing intervals reveals a clear pattern:
- Test 1 (3x Daily / 8-Hour Cycle): 1,029 total rewards over 7 days (Avg: 48.9 per collection).
- Test 2 (4x Daily / 6-Hour Cycle): 1,683 total rewards over 7 days (Avg: 60.1 per collection).
- Test 3 (12-Hour collection): 62 total rewards for a single collection.
- Test 4 (6-Hour collection): 61 total rewards for a single collection.
The Verdict on Volume: Despite waiting twice as long for the 12-hour hit (Test 3), the box count remained almost identical to the single 6-hour hit (Test 4). This proves that for sheer volume, frequency is king. Collecting every 6 hours is twice as effective because it clears the meter before the box count hits a “cap”.
City Mechanics & Tier-Based Strategy
To address a question raised earlier: you can choose to collect a green prize immediately or leave it; the timing doesn’t affect the reward itself. However, make sure to collect any pending green prizes before you evolve a building, as they can be lost during the upgrade process.
The “best” strategy ultimately depends on your building tiers:
- L4 Strategy (Volume Focus): If your city is full of L4 Monuments, collecting every 6 hours provides the best results. High frequency maximizes your total boxes without sacrificing the high-quality rewards L4s provide.
- L3 Strategy (Quality Focus): For cities primarily composed of L3 Monuments, a 24-hour cycle is better. Collecting L3s every 6 hours resets the meter too early, yielding only low-tier charms. Waiting 24 hours allows L3s to reach higher reward tiers like Holiday Wines.
Final Verdict
The “Acceleration Theory” does not apply to the frequency of rewards. While waiting longer might improve the quality of a single box (more Gems/Passes), it does nothing to increase the number of boxes you receive. To maximize your total haul, time your collections to your city: 6 hours for L4 volume and 24 hours for L3 quality.
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Thanks for the clarification @Night_Guy, so the jury is still out on the potential long term green box stacking acceleration effect.
I will try to do 2 long term tests to compare:
- Collect coins 3x per day leaving the green boxes for 2 weeks, then tabulate total green box rewards after 2 weeks.
- Collect coins and green boxes 3x per day for 2 weeks, then calculate average daily green box rewards after 2 weeks.
I’ll stop buying buildings during this time, though it might be slightly skewed if I receive a crown building reward so maybe I shouldn’t collect the crown rewards too?
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@River_girl I’m trying as well, but it’ just a habit of collecting my boxes after my coins in the morning lol Good Luck! I’m rooting for ya!
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@Night_Guy I am so unbelievably grateful that we have someone like you to run these tests! I only passed basic algebra with D! And without disclosing my age..that was many moons ago lol And I think even then, the teacher passed me out of sympathy as I failed the first time around! I ended up majoring in English when I hit college…again.. many moons ago 
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New Discovery: The HMP “Early Trigger” & The 8:1 Quality Theory
I think I’ve stumbled onto something significant regarding buildings in their Honeymoon Period (HMP). In HMP, new buildings produce coins extremely fast, often within just 10 minutes before production begins to slow down over the following 4 days.
The HMP Test: I waited only 2 hours after a full collection, then specifically collected coins from the HMP buildings. To my surprise, it immediately triggered 52 green prizes city-wide. Most impressively, my non-HMP L4s still yielded top-tier rewards like Golden Playing Cards and Holiday Wine, alongside Gems and Party Passes.
The Theory: Linear Scaling (L3 vs. L4) This leads to an interesting mathematical question. Since an L3 costs 10,000 Gems and an L4 costs 80,000 Gems, there is a clear 8x value difference between the tiers.
- If reward production is linear, does this mean an L4 reaches “peak quality” 8 times faster than an L3?
- If an L3 requires a ~22-hour (This is the true time if I remember) wait for top-tier rewards, an L4 - following this 8:1 ratio - might only need 2.75 hours to hit that same quality threshold.
- Taking it further: with a fresh HMP building acting as a catalyst to bypass the wait, could we potentially collect every 1 hour or less and still see high-tier rewards?
This discovery suggests that the 6-hour “Peak Quality” rule we’ve been following might actually be a conservative estimate for L4s. If the HMP trigger can force these prizes early, we may be looking at a way to drastically multiply daily prize volume.
I’ll be pushing the limits of this “8:1 ratio” to see just how short the collection window can go before the quality drops!
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Very interesting specks you might be discovering. Thanks for sharing what you discover.
So I have a question. How do you collect the green boxes only from HMP’s? Do they have to be physically displayed in your city or is there a way to collect only certain buildings that are in storage? This is one area I am not sure how to work it.
I know I can collect 1 building at a time when it is in the main city display and I do that with L4’s now, but there are monuments I put directly in storage (L1, L2) since I just like most do not have space to display everything in the main city.
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I have found that if I open my storage window I can still collect individual green boxes, however, if I accidentally touch the green box prize on the storage tab it opens all of them.
Unfortunately, it means scrolling through the contents of my storage window and there is always a rump left that I have to release as a bunch when the only green prize box left visible is the one on the storage tab itself.
I only have 231 buildings in total and more are in the city than in storage. For someone with hundreds of buildings in storage it would be a labourious job
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@PB234, are you looking to collect from buildings individually in storage, or are you after a full citywide sweep?
As @Eddi_Bets mentioned, clicking the green prize icon on the right of the storage tab (or the ‘Collect Rewards’ button at the top) will open everything at once. If you want to collect individually while in storage, keep these mechanics in mind:
- Single Buildings: You can collect individually as long as the building isn’t part of a stack.
- Stacked Buildings: If you click a stack (indicated by a quantity number), the game will trigger a collection for the stack.
To clarify my recent test, that HMP early trigger test was right after I had evolved most of my buildings to L4 Monuments. The most reliable way to ensure you can always collect individually is to keep your preferred monuments displayed in your city rather than stacked in storage.
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Ah I think you answered it with Stacked Buildings in storage. That is what I was not sure of. If there are say 3 Stranger UFO monuments, then clicking on that one will open all 3 if they all have a green box. Thank you
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Thank you.
what a waste typing 20 characters for a reply!
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