Тогда как-то так. Запись float например.
using UnityEngine;
using System.Collections;
using System.IO;
public class SaveMap : MonoBehaviour {
// Use this for initialization
void Start () {
FileStream fs = new FileStream(Application.dataPath + "/info.txt", FileMode.Create);
BinaryWriter w = new BinaryWriter(fs);
for(int i=0;i<200;i++){
w.Write((float)i);
}
w.Close();
}
}