Crystal boxes

There are two types of "Crystal Boxes", one being a common variant drops regularly as the battle fund increases, and a unique super-variant, the "Gold Box", that is essentially a regular Crystal box but has a much smaller chance of dropping as the battle goes on.

Regular Crystal drops

Crystal Boxes are a specific kind of bonus box that may appear at any time in a blue color and at an undetermined place. This box rewards the player with 10 Crystals upon capture.

Appearance of a regular Crystal box:

Gold box

A Gold box is a super-variant of a regular crystal box, which rewards the player that manages to capture the box with 1000 Crystals. A Gold box is dropped at random during the battle, with a 1/7000 chance of every added battle fund triggering one of these unique boxes. Upon the notification stating "Gold box will be dropped soon", one of the special boxes will spawn at random across the map after a period of 40 seconds have passed.

Appearance of a Gold box:

Festive Gold boxes

During holiday festivities and celebrations, the appearance of a Gold box often changes. Below you can see some of the game's previous festive gold boxes.

Table of Festive Gold boxes

Holiday	Crystal Amount	Additional information
New Year	2,000	The very first celebration to be held in ProTanki. Appeared on December 31st, 2021.
Valentines Day	1,000	Appeared on February 14th, 2022 as part of the Valentines day festivities.
Fools Day	?	Appeared during the April Fools Day celebrations. Had a random chance of giving the player that captures the box either a range of Crystals or Premium, Invulnerability (60s), full supplies (5m), a monster kill (destroys all nearby tanks) or 2 hacked gold boxes.
Cosmonautics day	3,000	Appeared during the Cosmonautics day celebrations on the 11th of April, 2022.
Easter	3000	Appeared during the Easter festivities on April 24th, 2022. Every egg gave the player that captured it either 1000, 1500, 2000, 2500 or 3000 crystals.
May Day	1,000	Appeared during the May Day festivities on May 2nd, 2022.
Anniversary	3,000	On July 11th, 2021 - the development of ProTanki started. One year later, the special Cake Gold appeared marking this special occasion.
Day of the Railway worker	1,000	Appeared on the 8th of August, 2022, as a way of showing celebratory gratitude to Railway workers.
Tankers Day	1,000	Appeared during the Tankers day festivities on the 10th of September, 2022.
Halloween	3,000	Appeared during the Halloween festivities on October 28th, 2022. The Gold box dropped in 2 variants, the regular Gold containing 1,000 crystals and a rare Pumpkin containing 3,000.