FString format - uint32_t len, 31 bit represents encoding where 0 is UTF-7 (ASCII), and 1 is UTF-16 (WCS-2)

Tag format
<TAG>\0version\0

/*<zar>
    uint32_t unk1
    uint32_t unk2
    uint8_t unk3 ?
    uint32_t unk4
    0x46C - <zar> + 0x15 + (unk4 << 2) - B2 00
    0x46D - unk5

next zar = <zar> + 0x1A + unk5
0xBC22 + (0x100<<2) = unk5 0x7659*/

<saveh>
    uint8_t unk1
    FString unknown
    FString name
    FString location
    FString date

<campaign_save>
    uint32_t unk1 - used in calloc, unk1 * 0x10C

<world>
    uint32_t uncompressed_size;
    uint32_t uncompressed_size;
    *compressed world data*

<sgd>
    uint8_t unk1[0x48]
    uint32_t N - num strings
    FString[N] - names
    uint32_t M
    M times - replics (dialog lines)
        uint32_t K - num strings
        FString[K]

<SSG>
    uint8_t unk1[0x14]

<entity_file>
    uint32_t N
    FString[N] - entity types
    uint16_t <esh> count
    uint32_t unk1
    count times - 1 (because entity id are indexed from 1)
        uint32_t flags?
        uint16_t type_idx
        <esh>

<entity>
    FString entity type
    <esh>

<esh>
    uint32_t N
    N times
        FString name
        uint32_t type
        uint32_t dataSize
        uint8_t data[dataSize]

esh data types
1 - bool, 1 byte
2 - float, 4 byte
3 - int32_t/uint32_t
4 - FString
5 - entity? FString?
8 - FString (Sprite)
9 - FString
11 - esbin
12 - entity flags
    uint16_t entity_id
    uint16_t flags

13 - frame, 48 bytes -- multiply all numbers by 4.0. I have strong feeling that it is
    // a 3x4 translation transform matrix, because one of the dumps showed it was
    uint8_t unk1[0x24]
    float c
    float b
    float a

14 - rect, 16 bytes
    int32_t top
    int32_t left
    int32_t right
    int32_t bottom

21 - FString
25 - FString

Attributes - player stats and skills
Modifiers - same as Attributes but applying new values to Attributes

Attribute - ESH
    int levSincePerk
    bool Binary
    esbin
        u32 section_size
        <attribs>
            int stats[7]
            int traits[11]
            int derived[26]
            int skills[18]
            bool skill_tags[18]
            bool opt_traits[38]
            int perks[111]
            int addictions[10]