diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 490eac9..c908016 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -2,4 +2,7 @@ file(GLOB unpaker_src "unpaker/*")
 add_executable(unpaker ${unpaker_src})
 
 file(GLOB db_extractor_src "db_extractor/*")
-add_executable(db_extractor ${db_extractor_src})
\ No newline at end of file
+add_executable(db_extractor ${db_extractor_src})
+
+file(GLOB obj_extractor_src "obj_extractor/*")
+add_executable(obj_extractor ${obj_extractor_src})
\ No newline at end of file
diff --git a/src/obj_extractor/obj_extractor.cpp b/src/obj_extractor/obj_extractor.cpp
new file mode 100644
index 0000000..e0e24d9
--- /dev/null
+++ b/src/obj_extractor/obj_extractor.cpp
@@ -0,0 +1,59 @@
+/*
+ * AIM obj_extractor
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <iostream>
+#include <stdio.h>
+#include <string>
+
+#include "objects.h"
+#include "other.h"
+
+void read_mmo(string fn)
+{
+    FILE *f = fopen(fn.c_str(), "rb");
+    if (!f)
+        return;
+    Objects objects;
+    objects.load(f);
+    MechGroups mgs;
+    mgs.load(f);
+    if (feof(f))
+    {
+        // custom maps?
+        fclose(f);
+        return;
+    }
+    MapGoods mg;
+    mg.load(f);
+    MapMusic mm;
+    mm.load(f);
+    MapSounds ms;
+    ms.load(f);
+    fclose(f);
+}
+
+int main(int argc, char *argv[])
+{
+    if (argc != 2)
+    {
+        cout << "Usage:\n" << argv[0] << " file.mmo" << "\n";
+        return 1;
+    }
+    read_mmo(argv[1]);
+    return 0;
+}
\ No newline at end of file
diff --git a/src/obj_extractor/objects.cpp b/src/obj_extractor/objects.cpp
new file mode 100644
index 0000000..64af13f
--- /dev/null
+++ b/src/obj_extractor/objects.cpp
@@ -0,0 +1,99 @@
+/*
+ * AIM obj_extractor
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "objects.h"
+
+Segment *Segment::create_segment(FILE *f)
+{
+    SegmentType segment_type;
+    FREAD(segment_type);
+
+    Segment *segment = 0;
+    switch (segment_type)
+    {
+    case SegmentType::ROAD:
+        segment = new SegmentObjects<Road>;
+        break;
+    case SegmentType::BUILDING:
+        segment = new SegmentObjects<Building>;
+        break;
+    case SegmentType::SURFACE:
+        segment = new SegmentObjects<Surface>;
+        break;
+    case SegmentType::STONE:
+        segment = new SegmentObjects<Stone>;
+        break;
+    case SegmentType::HELPER:
+        segment = new SegmentObjects<Helper>;
+        break;
+    case SegmentType::SHELL:
+        segment = new SegmentObjects<Shell>;
+        break;
+    case SegmentType::IMAGE:
+        segment = new SegmentObjects<Image>;
+        break;
+    case SegmentType::EXPLOSION:
+        segment = new SegmentObjects<Explosion>;
+        break;
+    case SegmentType::SOUND:
+        segment = new SegmentObjects<Sound>;
+        break;
+    case SegmentType::MUSIC:
+        segment = new SegmentObjects<Music>;
+        break;
+    case SegmentType::ANOMALY:
+        segment = new SegmentObjects<Anomaly>;
+        break;
+    case SegmentType::TOWER:
+        segment = new SegmentObjects<Tower>;
+        break;
+    case SegmentType::BOUNDARY:
+        segment = new SegmentObjects<Boundary>;
+        break;
+    case SegmentType::GOODS:
+        segment = new SegmentObjects<Goods>;
+        break;
+    case SegmentType::unk1:
+        segment = new SegmentObjects<unk1>;
+        break;
+    default:
+        assert(false);
+        break;
+    }
+    if (segment)
+    {
+        segment->segment_type = segment_type;
+        FREAD(segment->segment_len);
+        FREAD(segment->n_objects);
+    }
+    return segment;
+}
+
+void Objects::load(FILE *f)
+{
+    FREAD(n_segments);
+
+    for (int s = 0; s < n_segments; s++)
+    {
+        auto seg = Segment::create_segment(f);
+        if (!seg)
+            break;
+        seg->load(f);
+        segments.push_back(seg);
+    }
+}
diff --git a/src/obj_extractor/objects.h b/src/obj_extractor/objects.h
new file mode 100644
index 0000000..1701381
--- /dev/null
+++ b/src/obj_extractor/objects.h
@@ -0,0 +1,185 @@
+/*
+ * AIM obj_extractor
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+#define FREAD(var) fread(&var, 1, sizeof(var), f)
+#define FREAD_N(var, n) fread(&var, 1, n, f)
+
+using namespace std;
+
+enum class SegmentType : uint32_t
+{
+    TEXTURE         =   0x1,
+    MODEL,
+    SURFACE,
+    STONE,
+    TREE,
+
+    GLIDER,
+    HELPER,
+    ROAD,
+    WEAPON,
+    CONFIG,
+
+    SHELL, // (AMMO,BULLET)
+    IMAGE,
+    EXPLOSION,
+    EQUIPMENT,
+    ORGANIZATION,
+
+    BUILDING,
+    LAMP,
+    COVERING,
+    SOUND,
+    MUSIC,
+
+    GOODS,
+    ANOMALY,
+    TOWER,
+    BOUNDARY,
+    SOUND_ZONE,
+
+    unk1 = 0x1b,
+};
+
+struct Segment
+{
+    SegmentType segment_type;
+    uint32_t    segment_len;
+    uint32_t    n_objects;
+
+    virtual ~Segment(){}
+    static Segment *create_segment(FILE *f);
+    virtual void load(FILE *f) = 0;
+};
+
+template <class T>
+struct SegmentObjects : public Segment
+{
+    vector<T> objects;
+
+    virtual void load(FILE *f)
+    {
+        for (int i = 0; i < n_objects; i++)
+        {
+            T r;
+            r.load(f);
+            objects.push_back(r);
+        }
+    }
+};
+
+struct Common
+{
+    float       unk2[2];
+    uint32_t    unk3[2];
+    float       unk4[2];
+    uint32_t    unk5[2];
+    float       unk6[8];
+    
+    void load(FILE *f)
+    {
+        FREAD(unk2);
+        FREAD(unk3);
+        FREAD(unk4);
+        FREAD(unk5);
+        FREAD(unk6);
+    }
+};
+
+struct MapObject : public Common
+{
+    char name1[0x20];
+    char name2[0x20];
+
+    void load(FILE *f)
+    {
+        Common::load(f);
+
+        FREAD(name1);
+        FREAD(name2);
+    }
+};
+
+struct MapObjectWithArray : public MapObject
+{
+    uint32_t len;
+    vector<uint32_t> unk7;
+
+    void load(FILE *f)
+    {
+        MapObject::load(f);
+
+        FREAD(len);
+        unk7.resize(len);
+        for (int i = 0; i < len; i++)
+            FREAD(unk7[i]);
+    }
+};
+
+struct Sound : public Common
+{
+    uint32_t unk1[11];
+    char name1[0x14];
+
+    void load(FILE *f)
+    {
+        Common::load(f);
+        
+        FREAD(unk1);
+        FREAD(name1);
+    }
+};
+
+struct Road : public MapObjectWithArray {};
+struct Tower : public MapObjectWithArray {};
+
+#define KNOWN_OBJECT(name) \
+    struct name : public MapObject {}
+
+KNOWN_OBJECT(Surface);
+KNOWN_OBJECT(Helper);
+KNOWN_OBJECT(Shell);
+KNOWN_OBJECT(Stone);
+KNOWN_OBJECT(Explosion);
+KNOWN_OBJECT(Image);
+KNOWN_OBJECT(Music);
+KNOWN_OBJECT(Anomaly);
+KNOWN_OBJECT(Boundary);
+
+#define UNKNOWN_OBJECT(name) \
+    struct name : public MapObject { void load(FILE *f){ int pos = ftell(f); assert(false); } }
+
+UNKNOWN_OBJECT(Building);
+UNKNOWN_OBJECT(Goods);
+UNKNOWN_OBJECT(unk1);
+
+struct Objects
+{
+    uint32_t n_segments;
+    vector<Segment *> segments;
+
+    void load(FILE *f);
+};
diff --git a/src/obj_extractor/other.h b/src/obj_extractor/other.h
new file mode 100644
index 0000000..200f55f
--- /dev/null
+++ b/src/obj_extractor/other.h
@@ -0,0 +1,232 @@
+/*
+ * AIM obj_extractor
+ * Copyright (C) 2015 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+using namespace std;
+
+struct MechGroup
+{
+    char unk1[0x20];
+    char unk2[0x20];
+    uint32_t type1;
+    uint32_t len1;
+    char name1[0x70];
+    //{3,4
+        uint32_t unk30;
+    //}
+    //{2
+        uint32_t len;
+        vector<uint32_t> unk11;
+    //}
+    //{1,0
+        uint32_t unk20;
+        uint32_t unk21;
+    //}
+    vector<string> configs;
+    char unk100;
+
+    void load(FILE *f)
+    {
+        FREAD(unk1);
+        FREAD(unk2);
+        FREAD(type1);
+        FREAD(len1);
+        FREAD(name1);
+        if (type1 == 3 || type1 == 4)
+        {
+            FREAD(unk30);
+        }
+        else if (type1 == 2)
+        {
+            FREAD(len);
+            unk11.resize(len);
+            for (int i = 0; i < len; i++)
+                FREAD(unk11[i]);
+        }
+        else if (type1 == 1 || type1 == 0)
+        {
+            FREAD(unk20);
+            FREAD(unk21);
+        }
+        else
+            assert(false);
+        configs.resize(len1, string(0x20, 0));
+        for (int i = 0; i < len1; i++)
+            FREAD_N(configs[i][0], 0x20);
+        FREAD(unk100);
+    }
+};
+
+struct MechGroups
+{
+    uint32_t n;
+    char prefix[0x30];
+
+    vector<MechGroup> mgs;
+
+    void load(FILE *f)
+    {
+        FREAD(n);
+        FREAD(prefix);
+
+        for (int s = 0; s < n; s++)
+        {
+            MechGroup mg;
+            mg.load(f);
+            mgs.push_back(mg);
+        }
+    }
+};
+
+struct Good
+{
+    char name[0x20];
+    char unk1[0x40];
+    float price;
+    float unk2[10];
+
+    void load(FILE *f)
+    {
+        FREAD(name);
+        FREAD(unk1);
+        FREAD(price);
+        FREAD(unk2);
+    }
+};
+
+struct BuildingGoods
+{
+    char name[0x20];
+    uint32_t n;
+
+    vector<Good> goods;
+
+    void load(FILE *f)
+    {
+        FREAD(name);
+        FREAD(n);
+
+        for (int i = 0; i < n; i++)
+        {
+            Good g;
+            g.load(f);
+            goods.push_back(g);
+        }
+    }
+};
+
+struct MapGoods
+{
+    uint32_t unk1;
+    uint32_t unk2;
+    uint32_t unk3;
+    uint32_t n;
+
+    vector<BuildingGoods> bgs;
+
+    void load(FILE *f)
+    {
+        FREAD(unk1);
+        FREAD(unk2);
+        FREAD(unk3);
+        FREAD(n);
+
+        for (int i = 0; i < n; i++)
+        {
+            BuildingGoods bg;
+            bg.load(f);
+            bgs.push_back(bg);
+        }
+    }
+};
+
+struct MapMusic
+{
+    uint32_t unk1;
+    char name1[0x20];
+    char name2[0x20];
+
+    uint32_t n1;
+    vector<string> names1;
+
+    uint32_t n2;
+    vector<string> names2;
+
+    void load(FILE *f)
+    {
+        FREAD(unk1);
+        FREAD(name1);
+        FREAD(name2);
+
+        FREAD(n1);
+        for (int i = 0; i < n1; i++)
+        {
+            char name[0x20];
+            FREAD(name);
+            names1.push_back(name);
+        }
+
+        FREAD(n2);
+        for (int i = 0; i < n2; i++)
+        {
+            char name[0x20];
+            FREAD(name);
+            names2.push_back(name);
+        }
+    }
+};
+
+struct MapSound
+{
+    char name[0x20];
+    float unk1[4];
+    uint32_t unk2;
+    float unk3[4];
+
+    void load(FILE *f)
+    {
+        FREAD(name);
+        FREAD(unk1);
+        FREAD(unk2);
+        FREAD(unk3);
+    }
+};
+
+struct MapSounds
+{
+    uint32_t n;
+    vector<MapSound> sounds;
+
+    void load(FILE *f)
+    {
+        FREAD(n);
+        for (int i = 0; i < n; i++)
+        {
+            MapSound s;
+            s.load(f);
+            sounds.push_back(s);
+        }
+    }
+};
\ No newline at end of file