The documented collection loop in one screen: coins come from playing (Standard clears, daily missions, endless streaks), coins unlock characters of your choice, and characters are purely cosmetic — they never change the grid. What nobody has published is the roster itself and any character price, so this page marks those unknowns instead of inventing them.
Every row carries its source label; checked 2026-10-25.
Earned by playing: the official listing ties coins to level progression ('complete over 1,000 levels, earn coins'), and community wikis add campaign clears, daily missions, and endless streaks as sources. Coins are the game's only named currency.
GamerTweak's pre-rename guide says coins earned through gameplay unlock new characters of your choice. No character price has been published, and the October 2026 listing no longer mentions a character collection.
Both community wikis state the collection never changes the grid — characters do not alter difficulty, rules, or payouts. They are collectibles, not power upgrades.
Wrong placements consume hearts; run out and your progress on that attempt stops. Recorded zero-heart runs show the system biting in real play.
chiidokugame.wiki lists Heart + 1 at 149 Robux and a 2x Rewards Pass at 249 Robux, and notes neither pass solves boards for you.
Absence of data is data — these are the specific gaps, so you know exactly what any other page would be guessing.
Because no character changes the grid, the collection is the only part of Chiidoku where taste outranks strategy.
That has two practical consequences. First, no unlock is urgent: delaying a purchase never slows progression, because progression is measured in solved boards, not owned characters. Second, the collection rewards routine: the documented income lines — daily missions on a refresh cycle, Standard clears at your band, endless streaks when your accuracy holds — all pay into the same wallet, so a short daily session grows the collection faster than an occasional marathon.
For the income side in detail — measuring your own session yields instead of trusting invented rates — the resource planner walks through the arithmetic.
Play and earn coins, then spend them in the game's own unlock screen — the official listing ties coins to Standard play, and GamerTweak documents that coins earned through gameplay unlock new characters of your choice. No character price has been published by any source as of 2026-10-25, so your unlock screen is the only price list that exists.
Not documented anywhere official or community. GamerTweak names Dark Cloud, Eraser, and Mono Paint as unlockables it expects codes to grant eventually, but no full roster table exists — the in-game collection screen is the authoritative count.
No. Both community wikis document characters as cosmetic — they never change the grid or the difficulty. Progression through the 400-level campaign depends entirely on solving, which costs nothing.
Coins are the game's only named currency and characters are the only documented sink. Nothing official or community-documented mentions boosts, hints for coins, or any other shop item — if the in-game shop shows more, trust the screen over this page.
No — the community wiki lists Heart + 1 (149 Robux) and a 2x Rewards Pass (249 Robux) as game passes, which change mistake tolerance and payout speed rather than adding to the character collection. Neither pass solves boards for you.
