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New Holiday Ops 2026 tanks are here: BZT-70, Coccodrillo, Jagdpanzer E 90, Projet Louis, TBT, Stridsyxa and lower tiers: T-115, Cromwell Applique, Škoda T 15A, Rheinmetall Begleitwagen and Renault R35/FCM 36.

Don't forget about Well-Deserved Reward tank: Black Prince II, enjoy!

IS - World of Tanks

Tank from UssrISHeavy tank Tier 7Breakthrough Heavy Tank Breakthrough Heavy Tank

The IS-1 (IS-85) heavy tank was a thorough modernization of the KV-1. The tank featured the 85-mm D-5T gun. The IS-1 entered mass production in October 1943, but work was discontinued at the beginning of 1944, as the IS-2 (IS-122) tank entered mass production in December 1943. A total of 107 vehicles were manufactured.

Marks of Excellence requirements for IS: beta

1058
1581
2008
100%2356

Overtank offers Gun Marks for every tank, and various other services such as coaching. Interested? Visit Overtank

Shots required to get MoE (per battle)Show guns

100 mm D-10T (IS) 100 mm D-10T (IS) (damage per shot: 250):

5
7
9
10

122 mm D-25T (IS) 122 mm D-25T (IS) (damage per shot: 390):

3
5
6
7

85 mm D-5T (IS) 85 mm D-5T (IS) (damage per shot: 180):

6
9
12
14

Mastery badges for IS - base XP needed:

Mastery Badge: III class - Earn more experience in a single battle than the average highest experience of 50% of all players in the same tank within the last seven days.550
Mastery Badge: II class - Earn more experience in a single battle than the average highest experience of 80% of all players in the same tank within the last seven days.825
Mastery Badge: I class - Earn more experience in a single battle than the average highest experience of 95% of all players in the same tank within the last seven days.1099
Mastery Badge: Ace Tanker - Earn more experience in a single battle than the average highest experience of 99% of all players in the same tank within the last seven days.1344

WoT IS equipment

IS equipment builds for World of Tanks. Equipment based on Skill4ltu and Yzne configurations.

Target damage WN8 for IS:

620
990
1580
1930

Shots required to get target damage (per battle)Show guns

100 mm D-10T (IS) 100 mm D-10T (IS) (damage per shot: 250):

3
4
7
8

122 mm D-25T (IS) 122 mm D-25T (IS) (damage per shot: 390):

2
3
5
5

85 mm D-5T (IS) 85 mm D-5T (IS) (damage per shot: 180):

4
6
9
11

Expected values for IS:

Expected
frags:
0.99

Expected
spot
1.03

Expected
defense points
0.84

Expected
winrate
53.54%

WOT IS field modifications

II
IV
V

Tier VII field modification
available for tier IX-X tanks

Tier VIII field modification
available for tier X tanks

Bonus of Standard Modifications

+3% to vehicle hit points

Changes to technical characteristics

+10% to suspension durability

+5% to hull traverse speed

-7% to maintaining speed when crossing all terrain types

-3% to the aiming circle size

-5% to aiming speed

+3% to view range

+15% to additional stun duration

+10% to stun duration

other tanks from tier 7

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